Questions Asked on
April 28, 2010

college chemistry
Carbon monoxide is toxic because it bonds much more strongly to the iron in hemoglobin (Hgb) than does O2. Consider the following reactions and approximate free energy changes: Hgb + O2 > HgbO2 ∆G⁰ = 70 kJ Hgb + CO > HgbCO ∆G⁰ = 80 kJ Using
asked by Stephanie 
chemistry
Why is the carbon dioxide gas that carbonates fountain drinks stored in sturdy canisters?
asked by brenton 
science
Draw the structure for cis2,3dibromo2hexene.
asked by ima 
chemistry
Which of these pressures is the lowest? 1.1 atm, 16.7 psi, 740 mm Hg, 111 458 Pa
asked by carmen 
chemistry
How are mm Hg, torr, psi, atm, and Pa related to each other mathematically?
asked by delaney 
math algebra with pizzazz
pg 142 What happened to the computer programer
asked by jack 
chem
Why are titrations using permanganate performed in acid solution?
asked by help 
chemistry
a 1.00 L aqueous solution contained 5.80 g of NaOH. what is the pH of the solution? Can someone help me out with the setup of this?
asked by Anna 
criminal law
As a computing investigator for your local sheriff’s department, you have been asked to go with a detective to a local school that received a bomb threat in an anonymous email. The detective already has information from a subpoena sent to the last know
asked by peter 
chemistry
What will happen to the volume of a gas in a closed container if you increase the external pressure when the temperature remains constant?
asked by carter 
sewing
1. The type of machine that uses a needle that goes from side to side is a/an A. chainstitch machine. B. straightstitch machine. C. offset machine. D. zigzag machine. 2. Zigzag machines are divided into two categories: A. manual and automatic. B.
asked by parri 
chemistry
How does the kinetic theory explain how you can smell coffee and bacon at the same time?
asked by brigette 
Chemistry
As ice melts at standard pressure, its temperature remains at 0°C until it has completely melted. Its potential energy: increases decreases remains the same
asked by Megan 
college chemistry
Pentane, C5H12, and hexane, C6H14, combine to form an ideal solution. At 25⁰C the vapor pressure of pentane is 511 torr and that of hexane is 150 torr. In the vapor over a pentanehexane solution at 25⁰C, the mole fraction of pentane is 0.15. What is
asked by Stephanie 
Science Chemistry Ap
2SO3(g) > 2SO2(g) + O2(g) Delta H = 197kj For this reaction shown above, describe the changes that will occur to the number of moles of SO3 under the following conditions: (a) Additional oxygen is added to the reaction vessel. (b) The pressure in the
asked by Jake 
Pre calc
If 250 mg of a radioactive element decays to 200 mg in 48 hours, find the halflife of the element
asked by Dom 
chemistry
what is the freezing point of a solution of 12.0 g of CCl4 dissolved in 750.0g of benzene? the freezing point of benzene is 5.48 degrees C ; Kf is 5.12 degrees c/m.
asked by Kim 
8th grade math
Kenisha sells athletic shoes parttime at a department store. She can either earn $500 per month plus a 4% commission on her total sales or $400 per month plus a 5% commission on total sales. A)write a system of equations to represent the situation. B)what
asked by jessica 
Chem
The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm . It has a facecentered cubic lattice. Find the atomic weight of the unknown metal.
asked by HELp 
Chemistry
Which product is formed by beta emission from phosphorus 32? The atomic number of phosphorus is 15. A)28 Al 13 B)30 Al 13 C)32 S 16 D)32 P 15 E)33 P 15
asked by jim 
physics
You are holding a shopping basket at the grocery store with two 0.68 cartons of cereal at the left end of the basket. The basket is 0.80 long. Where should you place a 1.8 half gallon of milk, relative to the left end of the basket, so that the center of
asked by jenny 
algebra
Use the formula 4.9t^2 +vot=s, where t is the time in seconds, vo is the initial velocity, and s is the distance in meters. Approximately how far will an object fall in 4 seonds, if it is thrown downward at an initial velocity of 20 meters per second (vo)
asked by dani 
chemistry
Determine the minimum volume of 6.40M HNO3 required to dissolve a 2.40g sample of Cu. 2NO3(aq)+8H+(aq)+3Cu(s)>2NO(g)+4H2)(l)+3Cu2+(aq)
asked by Catalina 
college
Electric fields are vector quantities whose magnitudes are measured in units of volts/meter (V/m). Find the resultant electric field when there are two fields, E1 and E2, where E1 is directed vertically upward and has magnitude 96 V/m and E2 is directed
asked by Anonymous 
college chemistry
Cadmium sulfide (CdS) is used in some semiconductor applications. It is possible to evision the dissolving of this slightly soluble substance as an oxidationreduction reaction. Calculate the value of the solubility (Ksp) for CdS given the following
asked by Stephanie 
chemistrycheck my work
for each of the following pairs, determine which acid is the stronger acid. A. H2S, HS B. H2SO3, H2SeO3 C. HBr, H2Se D. HIO4, HIO3 E. H2S, H2O a. H2S b. H2SO3 c. HBr d. HIO3 e. H2S
asked by Anna 
physics
if the speed of the electron is 3.0x10^3 meters per second and the magnitude of the magnetic field is 3.0x10^5T then the value of the magnetic force is what?
asked by Anonymous 
research writing as a process
6.What's the next step to choosing a topic once you've identified a general subject? narrowing the topic formulating a thesis thinking about the nature of writing finding a general topic Question 7 What question should you consider when narrowing the
asked by christopher 
Chemistry
Write a balanced chemical reaction showing how the 4.99 g Sn dissolves in HNO3.
asked by Orangutan 
physics
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 79°C. The other sample has a mass of 83 g and is originally at a
asked by Kelsey 
college chemistry
A zinccopper battery is constructed as follows: Zn  Zn+2(0.10 M)  Cu+2 (2.50 M) Cu The mass of each electrode is 200.0 g. Each half cell contains 1.00 liter of solution. a) Calculate the cell potential when this battery is first connected. b)
asked by Stephanie 
chemistry
What are the concentrations of [H+] and [OH] in each of the following. Determine the pH and pOH for each solution. A. 1.25 M HCl B. 0.25 M NaOH C. 0.035 M Ca(OH)2 D. 0.50 M HNO3 I know how to do the pH and pOH I just do not know how to figure out the both
asked by Anna 
research writing as a process
Question 20 What does a thesis statement do? explains how you came up with your topic announces what you plan to do in your paper introduces the controlling idea of your paper lays out the process of your paper my answer introduces the controlling idea of
asked by Christopher 
algebra
A population grows by 4.7% each year. By what percentage does it grow each month? (Round your answer to two decimal places.)
asked by Anonymous 
research writing as a process
Question 1 What is one of the first steps in a research project? to think about the purpose of the research project. to consult a writing center tutor to formulate a thesis statement to find all the research you'll need Question 2 Which of the following is
asked by christopher 
college chemistry
a) Is the reaction shown below spontaneous under standard conditions at 25⁰C? CH3OH (g) > CO (g) + 2H2 (g) b) Will this reaction be spontaneous at 25⁰C given the following amounts of materials? CH3OH at 1.20 atm CO at 0.080 atm H2 at 0.020 atm
asked by Stephanie 
college chemistry
A solid consists of mixture of NaNO3 and Mg(NO3)2. When 6.50 g of this solid is dissolved in 50.0 g of water, the freezing point is lowered by 5.40⁰C. What is the composition of the solid (in mass percent)? Assume ideal behavior but watch out for the
asked by Stephanie 
Physics
A platform rotates at an angular speed of 2.2 rad/s. A block rests on the platform a distance of 0.3m from the axis. Static friction coeffient= 0.5. Without any external torque acting on the system, the block is moved towards the axis. Ignore the
asked by Rita 
calculus
a particle moves along the xaxis (units in cm) its initial position at t=0 sec is x(0)=15. the figure shows the graph of the particle's velocity v(t). the numbers are areas of the enclosed regions. in the graph 0 to a is 4 under the xaxis, a to b is 5
asked by shelby 
Marketing
Assume that you are a manager of a bank branch.Write a list of the implications of intangibility for you firm?
asked by Ana 
math
what is the answer to this question? The week before a big concert, five friends, alvin, bert, chip, dennis and ethan, stood in line to buy tickets. There were other people between them, but the five friends were in lin in the order listed above. the line
asked by ursie 
literature
What does Seattle say about integrating white and Native American cultures?
asked by brooke 
Mathprobability
consider a bowl containing 36 different slips of paper. Ten of the slips of paper each contain one of the set of digits 0 through 9 and 26 slips each contain one of the 26 letters of the alphabet. Determine the probabilities of the events specified.
asked by bwb 
Math probability
How many ways can three cars be parked in a row of four parking spaces? I have no idea how to do this?
asked by Bart 
catering
Ms. Troy would like you to make a copy of an outfit that she owns and really likes—a sleeveless dress with a shortsleeve jacket. She has selected a lilac linen fabric that comes in 36in. width. You make a pattern for the dress and record the following
asked by parri 
math
What are three different ratios for 5 circles and 4 squares?
asked by Joanne 
College Chemistry
In energy terms, ionization of an electron in an atom corresponds to the transition from whatever quantum state the electron is in to an energy of 0 KJ/mole. Calculate the energy in joules needed to remove one electron in the n=1 state from a hydrogen
asked by Bach 
Chemistry II
This is what I have. Could you please correct my work? Thank you. Compute the equilibrium constant for Ni^2+ (aq) and Cd (s). reduction Ni²⁺(aq) + 2 e⁻ ⇌ Ni(s) ; E°_red = 0.25V oxidation Cd(s) ⇌ Cd²⁺(aq) + 2 e⁻ ; E°_ox = 0.40V (negative
asked by Carl 
maths  geometry
In a space with an orthonormal coordinate system consider the plane; &: 4x3y=12 (a)(i)Find the coordinates of the points of intersection of the plane & with the coordinates axes (=axes intersections???) (ii)Find the parametric equations for the line of
asked by Anonymous 
chemistry
How are mm, torr, psi, atm, and Pa related to each other?
asked by delaney 
English/ Novel
I am trying to summary each chapter for the book Romiette & Julio by Sharon Draper. Please help!
asked by Tee 
Biology
What kinds of cells make it difficult to tear fern leaves from a plant? thanks:)
asked by Rebekah 
ALGEBRA 1
need help solving two houses are for sale on the same street.the second house has 1000 square feet less than twice the square feet of the first house. together the houses have 4400 square feet. what is the square footage of the first house? 2x1000 = 4400
asked by DEBBIE 
ALGEBRA 2
HELP the bulldogs won twice as many games as they lost. if yhey played a total of 36 games,how many did they win?
asked by DEBBIE 
chemistry
Why can you smell a cake baking in the kitchen when you are in your bedroom?
asked by Brooke 
research writing as a process
Question 14 How does a thesis function? A.it points out the inadequacies of the opposing views B.it states your position Cit summarizes the information D.it asks a question Question 17 5 points Save Which of the following is not a debatable thesis
asked by Christopher 
music
what is one of the chief characteristis of beethovens music
asked by Melanie 
Finding and evaluating sources
Question 15 Now that you have a list of citations and their accompanying bibliographic information, what question is not relevant when evaluating the source's audience? Can you tell who the author's intended audience is? Can you determine if the audience
asked by Christopher 
Math
A ladder 20 ft long rests against a vertical wall. Let \theta be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does
asked by Jennifer 
math
An advertisement states that eight thermometers cost $12.42 minus a 3% discount. Dr. wants to order a dozen to take advantage of the savings, sales tax is 5%. What would the cost be? Is my math right? I divided 8 by $12.42 and got $1.55 p/thermometer.
asked by debbie 
math
Michelle draws a card from a standard deck of 52 cards. She replaces the card and draws a second card. What is the probability that she draws a Heart and then a Spade?
asked by Scott 
Biology
Name 3 structures that help focus the light rays entering the eye: lens iris cornea Can someone tell me if this is right, if not a site I can check, please. Thanks
asked by Sue 
chemistry
Why does a balloon become smaller when placed in a freezer?
asked by carson 
Chemistry
I have a solution made up of 100 ml of distilled water and 2.0g of NaOH. I need to determine the total volumeof the solution in order to the calculate the mass of the reaction mixture. How do I do this? We are to assume the density of the solution is the
asked by Jim 
critically anazlyzing images and using them
Question 1 Which of the following is NOT a question to consider when analyzing visual images? Who produced the image? If there is a foreground and a background, what is in each? What are its parts, do they belong together, or do they contrast with one
asked by christopher 
college chemistry
If gaseous H2 and O2 are carefully mixed and left alone, they can remain intact for millions of years. Is this “stability” a function of thermodynamics or of kinetics? Give a valid reason to support your choice.
asked by Stephanie 
college chemistry
A) In some regions of the southwest United States, the water is very hard. For example, in Las Cruces, New Mexico, the tap water contains about 560 ug of dissolved solids per milliliter. Reverse osmosis units are marketed in this area of soften water. A
asked by Stephanie 
algebra
If the sides of a square are increased by 3 meters, the area becomes 64 meters squared. Find the length of a side of the original square?
asked by Liz 
English
1. What do you think about the movie? (Is 'what' the object of 'think'?) 2. How do you think about the movie? I think with my brain. I think it swiftly. I think it slowly. (Are the answers correct?)
asked by rfvv 
visual images and how to use them
Question 2 Which of the following is NOT a question to consider when analyzing visual images? If there are people in the image, how do they seem to relate to each other? If there are words in the image, what is their relationship to it? Where is the image
asked by Christopher 
Concept of Ration
A father distrubes R500.00 between his three sons that the eldest son gets twice as much as the second son, who in turn, gets as much as the youngest son. Using the Concept of Ratio, determine the amount that each son gets
asked by TL Matabane 
Calculus
Name two sets of vectors that could be used to span a set in R^3. Show how the vectors (1,2,0) and (3,4,0) could each be written as a linear combination of the vectors you have chosen.
asked by Jackiee 
physics
A 20 kg slender rod pivoted at its center has a length of 6 m. A motor applied a torque of 2400 Nm on the rod to turn it from rest. a) Find the the average power by the motor when the rod rotates an angle of 500 radians. b) Find the instantaneous power of
asked by drew 
Statistics
The mean IQ among members of a club is 118 with a standard deviation of 9.46. What percentage of the members had IQ scores of 115 or higher?
asked by CJ 
4th grade
what is a command, statement, question, and exclamation sentences please show me some
asked by Anonymous 
high school
what factors change in experiment, when alkaseltzer is added to vinegar and diluted vinegar does it speed up tto 45 seconds?
asked by debra 
Using souces and avoiding plagirism
Question 4 What is a summary? a brief restatement using your own words an extended restatement that includes indepth analysis a brief restatement using quotations an exact quotation of the main idea my answer a brief restatement using your own words
asked by christopher 
college
A standard voltaic cell is constructed so that the overall cell reaction is 2Al+3(aq) + 3M(s) > 3M+2(aq) + 2Al(s) where M is an unknown metal. If ∆G⁰= 411 kJ for the overall cell reaction, identify the metal used to construct the standard cell.
asked by Stephanie 
math
what is the answer to this question? The week before a big concert, five friends, alvin, bert, chip, dennis and ethan, stood in line to buy tickets. There were other people between them, but the five friends were in lin in the order listed above. the line
asked by jw 
math
Using only these numbers once for each answer 8,1,4,3,7 the product of two 2 digit numbers plus a number is 3,355. What are the numbers?
asked by micheal 
chem
Why are titrations using permanganate performed in acid solution?
asked by help 
research writing as a process
Please correct the sentence below and make it an appropriate thesis statement. In this essay, I will argue that alternative medicine is popular and everyone should use it. As we learn more about the benefits of alternative medicine, patients should be
asked by Christopher 
algebra
An object is released into the air at an initial height of 6 feet and an initial velocity of 30 feet per second. The object is caught at a height of 7 feet. Use the vertical motion model, h = 16t^2+vt+s, where h in the height, t is the time in motion, s
asked by alice 
english
What changes have you seen in your lifetime with regard to people's attitude towards the environment?
asked by Emma 
science
Can someone explain to me using a formula, why an increase in carbon dioxide makes the blood more acidic.
asked by jb 
Calculus Ladder Problem
A ladder 20 ft long rests against a vertical wall. Let \theta be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does
asked by Jennifer 
chemistry
What must be the pH of a solution that is 0.067 M Fe3+ to just cause Fe(OH)3(s) to precipitate?
asked by Bob 
math
prove the following: given: ABCD is a trapezoid with bases BC and AD to prove: BX • AX = DX • CX X is the intersection of the segment going from BD and AC i need the answer in a two column proof statements Reasons 1. ABCD is a trapezoid with 1. given
asked by bob 
phi 105 introductory to philosophy
I read the article who is holy and i need some help in writting a 200 word critique on this article. I find no fault in this article.
asked by lisa smith 
Math
Suppose r(x) = 8(x)^(1/2) represents revenue and c(x) = 2(x)^2 represents cost, with x measured in thousands of units. Is there a production level that maximizes profit? If so, what is it?
asked by Jenna 
Finance
What is the 1 year operating cash flow? Sales $33,000 Depreciation $10,000 Other operating costs $17,000 Interest expense $4,000 Tax rate 35%
asked by John B 
AALGEBRA
NEED HELP SOLVING 3h/2 = 30 and 3(3+r)= 2r+4 so 3x3=9,3xr=3r = 2r+4 9+3r=2r+4 99+4=3r+2r ?????
asked by DEBBIE 
EnglishHappiness
I'm doing a short poem on Happiness. I'm going to work on it after, but I just need a good title for it. Here is an example of a type of poem I'm trying to do: Title: Happiness is a Butterfly Happiness is like a butterfly which, when pursued, is always
asked by Sara 
MathProbability
I do not know how to figure out his next shot. A basketball player has made 34 of her last 42 freethrow attempts. What probability would you assign to the player’s next free throw being successful? Explain your reasoning. 34/42 = 17/21 I would assume
asked by Bart 
home economics
a system of government in which powers are divided between a central government and several regional goverments is call?
asked by deajia 
catering
which of the following gadgets is best for making a softshell shape out of butter? A.curler B.peeler C.masher D.pick
asked by parri 
math
Triangle I has sides with lengths 2 2/3 cm, 4 1/2 cm and 3 cm. Triangle II has sides with lengths 8 cm, 13 1/2 cm and 9 cm. Are these triangles similar? If yes, what is the ratio of correspondence?
asked by hola 
chemistry
A certain vinegar is 5.0% acetic acid in water. What mass (in grams) of acetic acid is needed to mix with 185 grams of water to prepare this vinegar?
asked by Anonymous 
chem
Why are titrations using permanganate performed in acid solution?
asked by help 
college chemistry
Sodium chloride is added to water (at 25⁰C) until it is saturated. Calculate the Cl concentration in such a solution. Useful data are provided below. ∆G⁰!@#$%^&J/mole): NaCl (s) 384 Na+ (aq) 262 Cl (aq) 131
asked by Stephanie 
Grammar
I have to decide what familiar saying or proverb is hidden in two of these formally written statements. Then I need to write it in informal language. 1. A single pass of the needle in sewing will oftentimes prevent the necessity of nine such passes. 2. The
asked by AL 87 
math
how do you find the circumference of a circle.
asked by Gio 
math
3 2/5 * 1 1/8
asked by Gio 
Political Science
In the policy making process, explain why things take a long time to get done, clarify why one person cannot do it alone?
asked by Amy 
geometry
if angle a is 4x + 10 and angle b is 6x + 4, what are the measurements of angle a and b.... if you could help me with this one, I should be able to figure out the rest.... the textbook does not help
asked by matie 
research writing as a process
Which of the following is not a characteristic of a thesis? It is very narrow. It is expressed in a sentence. It does not announce. It is not too broad. my answer It does not announce.
asked by Christopher 
Chemistry
What is the pH of a solution in which [H30+] = 1.2 x 10^3 M? A)1.20 B)2.92 C)11.08 D)12.80 E)8.33 x 1012
asked by jim 
precalculus
Beginning with the graph of y=e^x, describe each of the transformations that may be used to graph the function y=6+2e^x. Use complete sentences.
asked by SunLei 
English
1. We should not eat and drink. (Does it mean that we can not both eat and drink? Does it mean that we can not do the activities at the same time?)
asked by rfvv 
visual images and how to use them
Question 12 Which of the following visual arguments contains an ethical appeal? none of the above 1 a bar chart of 2003 housing construction sales per state an advertisement for corn seed that shows a farmer and his family standing next to a tractor with
asked by Christopher 
Biology
For what enzymes is iron especially important?  (Talking about photosynthesis and phytoplankton)
asked by Krysten 
English
How do you know what the topic and main idea of a paragraph is?
asked by 3rd Grader 
Statistics  Is it from Normal Distribution
I think I know how to answer the following question IF I assume that the distribution is normal  however, since the question doesn't say that it comes from a normal distribution  should I proceed differently? Question reads: The mean IQ among members of
asked by CJ 
ecology
Air pollution impacts us on a global level. What are the implications of global warming?
asked by mark 
ALGEBRA
need help solving 50=3(r+16) 2(r2) and 5(2x10)/2 + 14 = 19
asked by DEBBIE 
confidentiality of health information
Joe researcher asks for access to patient records as part of a research project. What should the health information manager do? A. Say yesaccess for research is permitted. B. Say no. C. Tell Joe to submit his request to an institutional review board if he
asked by Question 
Physics
A 2m radius uniform 50kg disk has an object of unknown moment of inertia screwed into its center. A constant external force of 200N is applied tangentially to the disk's rim. A constant torque due to kinetic friction of 180Nmrad is present throughout the
asked by Larry 
chemestry
what is the condensed structural formula for. 5 ethyl2hexene
asked by yaimery 
Chemistry
Which of the following increase the melting point of an ionic compound? decreased charge on the ions increased size of the ions increased charge on the ions decreased size of the ions increased amount of the compound
asked by Megan 
Confidentiality of Health information
The newspaper phones a rehab clinic and asks if Sally celebrity is a patient and what is her status. The clinic should A. Tell the newspaper the truth B. lie and say she's not if, in fact she's there. C. acknowledge her presence but give no details on
asked by Student 
PreCalculus
Hi im unsure how do this problem becasue I do not how to go about these types of problems were you make monthely payments each month of the same amount... Janene contributes $50 per month inot the Chaing China Bond Fund htat earns 7.26% annual intrerest.
asked by Kate 
maths
why is the extrapolation of data points from models beyond the time frame of the original data considered suspect?
asked by sarah 
grammar
• Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. • Mark each verb used in bold and, in parentheses, identify the specific tense used.
asked by anna 
geometry
An isosceles trapezoid has base angle 45 degrees and bases of length 12 and 32. Find its area.
asked by Anonymous 
chem
Can someone help me I need to find out how to solve the following equation What is the PH/POH of a .0727m H3O+ Solution at 25 degrees c
asked by Help 
8th grade
Is 7*10^11 in scientific notation? If not, write it in scientific notation.
asked by Logan 
Calculus
Find the absolute max of f(x)=5xe^(5x)
asked by Emily 
math
If one clerk can process 75 pieces of mail in 2 and 1/2 hours, how long will it take eight clerks to process 1620 pieces of mail if all of them work at this same rate?
asked by katrina 
math
m+1  4 + 5  6 = 2m1  12
asked by zach 
6th grade math
14/1513/16= show work
asked by tom 
math
Use the data in the following table to compare the number of people living in the United States from 1810 through 1900 and the number living in the United States from 1910 through 2000. Use any form of graphical representation to make the comparison and
asked by crystal 
math
There are 12,350 seats in a sports arena if 4/5 of the seats are filled for the even,how many seats are filled?
asked by haris 
Physics
You meet a person with prescription glasses of +1.74 dpt. What is the near point of this person? Express the result as a positive number! Hint: the near point of a healthy person is 25 cm. An object placed at this distance will form an image at the near
asked by lauren 
math
3/14 of rosebuds in a garden bloomed yesterdday and 2/5 of the remaining rosebuds bloomed today.66 rosebuds have not yet bloomed.how many rosebuds were there in total? how many rosebuds bloomed today?
asked by sid 
Chemistry
A voltaic cell consists of a Pb /Pb^2+ halfcell and a Cu/Cu^2 halfcell at 298K. The initial concentrations of Pb^2+ and Cu^2 are 5.20×10−2 M and 1.40 M, respectively.
asked by Emma 
chemistry
what are the significant figures of the numbers: 1)0.0761114947969612 2)132.545358664364 would it be 0.076 and 132.5?
asked by Carson 
history
what were the social, economic,and political variations between the north south and west on the eve of the civil war?
asked by Danielle 
9th grade  Civics
Name the first state to issue license plates for their automobiles.
asked by Malik 
math
1. 10^(9x5)=6^9x9 x=...? 2. 9*5^(5x3)=23 x=...?
asked by Channing 
math
A plane that flies 170 miles per hour is flying 510 miles. How long will the trip take?
asked by joe 
social studies
do you know any webs where i can find out about Italy.(i tried italy . com)
asked by chichi 
algebra
what is the solution of the following system of equations? 2y + 3x = 8 y = 1/2x a)(2,3) b)(1,2) c)(3,2) d)(2,1) what is the solution if the following system of equations? y = 2x + 10 3y = 4x a)(3,4) b)(4,3) c)(5,1) d)(1,5) Thanks you
asked by molly 
4th grade
Using only 8,1,4,7,3 only appearing once in an answer. The product of two 2 digit numbers plus a number is 3,355. What are the. Numbers?
asked by micheal 
Math Probability??
I do not know how to figure out his next shot. A basketball player has made 34 of her last 42 freethrow attempts. What probability would you assign to the player’s next free throw being successful? Explain your reasoning. 34/42 = 17/21 I would assume
asked by bwb 
algebra
5x+10/2x6 * x3/10x+20
asked by ginger 
critically anazlyzing images and using them
Question 7 Television and print advertisements ____________________. are unbiased; after all, viewers can see the facts themselves may appear unbiased, but they are attempting to shape our opinions by showing viewers the facts they choose to present none
asked by christopher 
algebra
can you walk me through these 4+x/5 < 8 and x2/3> 2x + 11
asked by Tony 
Math
Write an equation of the line satisfying the given conditions. 45) Horizontal line through ( 2, 5)
asked by Anonymous 
Probability
What is the probability of flipping a coin two times and getting no heads? If I flip a coin twice and get no heads wouldn't it be 2/2 or 1?
asked by bwb 
Adjectives and Adverbs
1.This modifier illustrates the rule that adjectives of two syllables vary. If the word ends in y, change the y to i and add er, est endings. Otherwise, some twosyllable adjectives take er, est endings. Others take more, most and less, least. more
asked by Christopher 
research writing as a process
Question 14 How does a thesis function? it points out the inadequacies of the opposing views it states your position it summarizes the information it asks a question my answer it summarizes the information
asked by Christopher 
math
7.86*4.6=
asked by mary 
eth125
What do you predict the effect of Hispanic and Latino panethnicity to be in the future?
asked by smartonesmartone 
algebra
I am totally lost on how to solve g(x)=2x^2+3x1 to find the y and xintercepts. This is what I have so far, but I don't know if I am on the right track. And if so what would be next? g(x)=2x^2+3x1 =2x^2+3x 1 =(2x^2+3+6) +31
asked by dani 
Math
A ladder 20 ft long rests against a vertical wall. Let \theta be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does
asked by Jennifer 
geometry
U=? T=50 120=v&r what is U?
asked by jeneve 
Chemistry
An aqueous solution of a compound with a very high molar mass was prepared in a concentration of 82.7 g·L1 at 25 °C. Its osmotic pressure was 0.540 ·102 Pa. Calculate the molar mass of the compound. Cheers
asked by David 
algebra
Please help me! Sorry there are 4 questions I need to check my attempts with to see if I am on track. Thanks!! 1. 53[2(3x4)+3] 2. Evaluate when x = 3 and y = 2 3x squared  4y squared _______________________ 4x  7y 3. 3/4y = 24 4. m + 1 + 5 = 2m  1
asked by zach 
human reations
Another name for false productivity is
asked by correana 
Finance
what is the present value of a security that will pay $5,000 in 20 rears if securities of equal risk pay 7% annually?
asked by Anonymous 
phi 105 introductory to philosophy
do you have any homework posted for this class especially week 6 day 3?
asked by lisa smith 
Finance
Differentiate between the various financial intermediaries,what is their main differentiating factor?
asked by Ugo 
chemistry
What is the pH of a .10M (CH3)3N solution? Kb=6.40e5
asked by Nancy 
Finance
Alphonse Inc. is thinking about investing in an annuity contract that will return $100,000 annually at the end of each year for 15 years. What amount should Alphonse pay for this investment if it earns an 6% return?
asked by a 
Science
A substance seems to completely fill a container, but more can be forced in. What is the subatance a solid, liquid gas or none of these?
asked by rhon 
physics
Hi can someone please explain to me how to get the answers to the following questions. It would be greatly appreciated A pair of horizontal parallel plates are placed a small distance, 4.00 mm, apart in air. Each plate is rectangular with a width of 20.0
asked by Jessica 
algebra
Please help me! Sorry there are 4 questions I need to check my attempts with to see if I am on track. Thanks!! 1. 53[2(3x4)+3] 2. Evaluate when x = 3 and y = 2 3x squared  4y squared _______________________ 4x  7y 3. 3/4y = 24 4. m + 1 5 2m  1
asked by zach 
instrument
this very moment by kcjojo
asked by Anonymous 
%
The original price of a video game is $75. The store allows you to use either a 25percentoff and then a 20percentoff coupon, or a 45percentoff coupon all at once. How much more can you save using simply the 45percentoff coupon to buy the video game
asked by sam 
Physics
A ball of mass oscillates on a spring with spring constant = 200 . The ball's position is described by (0.350 ) 16.0 with measured in seconds. What is the amplitude of the ball's motion? What is the frequency of the ball's motion? What is the value of
asked by R 
Grammar
Analogies Pot is to top as tip is to? Ring is to sting as brick is to?
asked by Tristan 
Math
There is a circular table and it has an area of 1256 square inches. The table opens in the middle to allow additional boards to be added. Each board is 12 inches squared, fits across the diameter of the table, and is rectangular in shape. How many boards
asked by Charity 
chemistry
A 4.50e2 M solution of unknown monoprotic weak base has a pH of 10.200 what is the value of kb for the base
asked by Nancy 
critically anazlyzing images and using them
Question 16 Images help to send messages, so we should choose our images based on ____________________. what the audience wants to see our own favorite images how we analyze our audience, what our underlying claims are, what logic we use, and what emotions
asked by christopher 
history
Do you think federal government involvement in education is beneficial? Why or why not?
asked by kirk 
Geometry
If I have 21.95 = r cubed, how do I find the r? Thank you
asked by tim 
2nd grade
the homework is about quotation marks. Add quotion marks if the sentence needs them. Write an x after the sentence if quotation marks are not needed. 1. Cal wants to collect rocks. 2. He asks, Mom, can I have a bucket for my rocks?. 3. His mom gives him
asked by susana 
History
As a result of the Pullman Strike, for the next 30 years the government
asked by Ally 
Math
Use a half angle formula to determine the exact value of sin 7(pi)/12.
asked by David M. 
Chemistry
If one strand of DNA has the sequence AATCCGTAGCTC, what would be the sequence of its complementary strand?
asked by Abby 
health
compare cost control strategies of employersponsored health plans
asked by roberta 
grants
im 12 yrs and writing a grant for the school so we can get 'money' to build a toothpick bridge and i have no clue how to write them!!! everything the websites say is soooo confusing!!1
asked by tinkerbell 
chemistry
how to make a 100 mL solutino of 1.50M of NaCl
asked by Matt 
english
i need to compare theatres technology from today and in the elizabethan era. but i have to also use proof or quotes from the book cue for treason. help?
asked by ` 
Macroeconomics
Say you have a 15% inflation rate and a 10% unemployment rate, and inflation is "public enemy number 1", what fiscal and monetary policies could you use to defeat inlfation?
asked by David 
science
what is believed to be the first living thing on earth?
asked by joshua 
algebra
Would the vertex of f(x)= (x+3)^2+4 be (4,3)?
asked by dani 
social studies
Who, when, where, and why was the AIM(American Indian Movement)started
asked by Anonymous 
social studies
what group of people made a historic move and traveled from nova scotia,canada to louisiana territory
asked by tina 
Social Studies
Why did New France have a hard time attracting settlers? (B) What economic activities were profitable in New France?
asked by JP 
Physics
What is surface tension and what does tension in surface mean. Definition of tension?
asked by Akashdeep Singh 
7th grade
in 1755 why didn't the english people want the acadians in nova scotia?
asked by Debbie 
literature
The major theme of "life Without Principle" is
asked by brooke 
math
What is the estimate of 4/5 + 6/7
asked by Gio 
algebra
Is the line of symmetry in f(x)= (x2)^2+2 x=2
asked by dani 
chemistry
Which of the following is a weak acid? A)HN03 B)H3P04 C)NH3 D)C03^2 E)OH
asked by jim 
Chemistry
If the concentration of H3O+ is 3.5 X 10^3 M. What is the concentration of OH
asked by John 
science
which layer of the atmospher has the highest density of gas molecules
asked by NeNe 
Chemistry
Which compound has a value of Ka that is close to 10^5? A)NaCl B)HN03 C)CH3CH2C02H D)KOH E)NH3
asked by jim 
math
x/.8 = 7/4
asked by Gio 
us 210
Describe what you consider the most effective behavior of entrepreneurs, managers, and employees.
asked by Sara 
Adjectives and Adverbs
Question 7 This modifier illustrates the rule that adverbs of two syllables take more, most and less, least. more beautiful smaller most safely sillier Question 8 This modifier illustrates the rule that adverbs of two syllables take more, most and less,
asked by Christopher 
math
estimate 24.301 /5.7
asked by Gio 
Adjectives and Adverbs
Question 11 This modifier illustrates the rule that onesyllable words usually take er and est endings. mellowest least sweetly less generous nearer Question 12 This modifier illustrates the rule that threesyllable words take more, most and less, least.
asked by Christopher 
Math!!!
Simplify the following including like terms 13rs(squared)r+42s(squared)+6s(squared)8rs(squared)3r
asked by Amber 
Math!!!!!!!!!!!!!!
1+1=2,2+2=4,4+4=8,8+8=16
asked by VIMIM 
phys ed
im in swim and my teacher thinks i have a bad stroke how do i get a strong stroke
asked by bills luver 
math
Describe the mathematic process of canceling like factors when working with rational expressions... Demonstrate this with an example
asked by Laughter 
Math
Today Jamal had a spelling test. There were 21 words on the test. Jamal spelled twothirds of them correctly. How many words did Jamal spell correct?
asked by Marie 
algebra
describe the mathematic process of canceling like factors when working with rational expressions and demonstrate this with an example
asked by Laughter 
visual images and how to use them
Question 6 Television and print advertisements are visual arguments because ____________________. none of the above words are visible in the advertisements they are designed to convince us to buy a product, vote for a candidate, support a cause, and so on
asked by Christopher 
Math
Provide an example of at leave five ordered pairs that do not model a function.? The domain will be any 5 integers between 0 and 20. The range will be any 5 integers between 10 and 10. Can someone please help me with this? Explain how you got the answer
asked by Sarah 
physics
Equivalent forces derivation problem. EXAMPLE: Derive the formula for F3 in terms of the experimentally measured quantities m1, m2, 1, and 2. [Answer: F3=m1gcos1+m2gcos2.] Make sure you understand how this formula was derived. QUESTION: If the mass of both
asked by sarah 
Math
I can't figure out the function rule for one problem: X [] 2 12 1 9 4 6
asked by Jerious 
algebra
find the solution for 0=x^2+310x3000
asked by Anonymous 
ethics
what should the organization's position be in response to nondiscrimination issues?
asked by cortez 
phi105
who is holy the article
asked by lisa smith 
6th grade language arts
a book listing many itmes is called a.... the word ends in logue
asked by Xavier 
Chemistry
A pressurised can of whipped cream has an internal pressure of 1.33x105 Pa at 25.0 oC. If it is placed in a freezer at 15.0 oC, what is the new value for its internal pressure (in Pa)?
asked by Alex 
college
need help with week 6 day 3 phi/105
asked by lisa smith 
Calculus
Show that the vectors (1,2,3), (4,1,2) and (14,1,16) do not lie on the same plane
asked by Blazon 
math
Peform each indicated operation by using LCD and simplify the result. Can you please show me the steps on how you got the answer because I don't understand how to these problems. Thank you. y+2 over y^2+2y+4 + 1 over y2 z3 over z^2+z6 + 2z+1 over z2
asked by Bradley 
Science
Thank You DrBoB222 for the science help
asked by rhon 
2nd grade
I need a sentance for disloyal and the meaning. Thank You
asked by Anonymous 
Chemistry
What effect does lowering the pressure on the surface of water have on the boiling point? It increases the boiling point It decreases the boiling point the boiling point remains the same
asked by Megan 
calculus
Given: theta is in standard position in quadrant 1 with p(x,y)=(5,12) find sin 2 and cos 2
asked by robin 
chemestry
sorry its 5ethyl2hexyne
asked by yaimery 
chemistry
what would the final volume of water be if 80 kJ were added
asked by ashley 
research writing as a process
how does a thesis function it points out the inadequacies of the opposing views
asked by Christopher 
research writing as a process
how can I turn this into a appropriate research question? . Why are kids so violent today? What is wrong with them?
asked by Christopher 
math
how do you take log(63)
asked by eng 
physics
what would be the significance of the photoelectric effect graph if it a) passed through the origin b) had a positive y intercept
asked by tan 
Math
There are 40 students. THere are 6 who only like tape , 10 who like both tape and disc, and 11 who like only disc. How many bout tapes ? tapes but not disc , both tapes and discs neither discs nor tapes .. explain the progress of getting the answers
asked by Ashley 
Voltage difference
I am trying to understand what the effects of a voltage difference would have in the method of electrostatic charge spray painting.. Any one?
asked by Alice 
Math
You roll a number cube three times. Find P(all odd).
asked by James 
Chemistry
can u calculate the number of moles 0.5g of H?
asked by corey 
research writing as a process
Which of the following is a goal you may want to accomplishin a research project? to formulate a thesis statement to think about the purpose of the research project. to pick something you wrote a paper on last year and just correct the errors to analyze my
asked by Christopher 
law
Describe the functions of organizational networks and specialized criminal justice databases in 200 to 300 words, recognizing that technology is rapidly becoming more important in the field of criminal justice.
asked by jessie 
language
what are the elements of persuasion?
asked by heather 
Confidentiality of health information
Dr. Bob's computerized records have been compromised by a hacker, resulting in damages to patients. Which of the following is most true? A. Dr. Bob may be liable if he didn't have proper firewall or other protections. B. Dr. Bob won't be liable. C. Dr. Bob
asked by Anonymous 
CHEMISTRY
Can someone please help me with this problem. The following cell is set up to measure the concentration of K^+ in blood serum Ag,AgCl  KCl(aq), c=1mol/L  K^+ selective membrane  KCl, c mol/L in serum  NaCl(aq), c=1mol/L  AgCl,Ag 1) If the cell
asked by Jen 
math
In the figure, l is parallel to m, and m( 1) 5 60°. Find each of the following: b. m( 6) l is paralled to m. this is how the numbers are listed 2 1 3 4 6 5 7 8
asked by crystal 
math
1. Refer to the following line m: b. Name two rays on m that have endpoint B. d. Find a simpler name for the intersection of rays BA and AC the line m has points a b and c going on across like that
asked by crystal 
ecology
Give examples of how humans have increased their food supply and what effects these methods have on the environment overall.
asked by mark 
7th grade
do monsoons affect the climates of both north and south korea?
asked by donald 
Using souces and avoiding plagirism
Which of the following is correct? a quotation is the record of your original source’s main point in your own words a quotation is the record of the exact words of your source indicated by quotation marks a quotation is the record of the exact words of
asked by christopher 
Algebra
Need help with these 4. Does the following set of coordinates make a horizontal, vertical, or diagonal line when connected with a straight line? (4,5) (2,5) Answeryes 10. Classify the number as rational or irrational: 4.126532 14. Which of the
asked by mysterychicken 
English
How might a character change in the course of a novel?
asked by Betty 
math
wats 4 divided by 137
asked by brian 
PreCalculus REINY HELP PLEASE
well yay thanks for the answer but i really need the formula lol I tried to derive it on my own but it was a little bit rough lol i need the formula it wasn't in my book and I don't know what the name of the formula would be so i can't really google it...
asked by Kate 
chemistry
What volume of 12 M HCL must be diluted to make 2L of solution with pH of 4?
asked by Anonymous 
Finance
If a corporation wanted to guarantee its long term costs of financing an investment project, it could: a.) sell tbill futures for when the funds were needed b.) buy tbill futures for when the funds were needed c.) sell tbond futures for when the funds
asked by Sam 
Finance
Holly, a speculator, expects interest rates to decline in the near future. Thus, she purchases a call option on interest rate futures with an exercise price of 9210. The premium on the call option is 224. Just before the expiration date, the price of
asked by Sam 
Physics
Does the law of reflection only apply to mirrors or any object?
asked by Emily 
Finance
find present value of 29000 if you invested 9% in 17 quarters
asked by LaKendra 
critically anazlyzing images and using them
Question 12 Which of the following visual arguments contains an ethical appeal? none of the above 1 a bar chart of 2003 housing construction sales per state an advertisement for corn seed that shows a farmer and his family standing next to a tractor with
asked by christopher 
English
Can you please check this for grammar. Edsel and Eleanor Ford commissioned Albert Kahn to build their home and William R. Valentiner, director of the DIA to help lay the basic foundations for the paintings, furniture, and objects that completed each of the
asked by Kayden 
adult education
Marketing strategy planners should recognize
asked by Anonymous 
math
what is the solution of the following system of equations? y = 2/3x y = 1 a) (2,3) b) (1,2/3) c) (3/2,1) d) (1,3)
asked by molly 
Biology
Hi there, I have to do a paper on Luteinizing hormone and Follicle Stimulation Hormone. Could you direct me to newspapers or journal articles discussing both hormones individually and it's relation to homeostasis. Also, what is the chemical nature of the
asked by Melanie 
math
60% is what common fraction?
asked by joey 
Management
How does the local, state, or national economy affect your business or place of work?
asked by Nicole 
Management
Are there business that are relatively recession or depression proof? Why or why not?
asked by Nicole 
WH
Who traded coffee between 6001450?
asked by Allison 
Management
During an economic boom, are there businesses that may not prosper to the same extent as others? Why or why not?
asked by Nicole 
9th grade  Civics
When was the last time Washington D.C.'s Electoral College votes went to a candidate form the Republican Party? How many Electoral College votes do they have?
asked by Malik 
science
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard
asked by Jason 
Social studies
The most useful indicator of the degree of democracy reached by a particular society is whether it has a what?
asked by Charles 
math
what is 15% of 35?
asked by joseph 
math
2 7/8 divided by 2 5/6
asked by Malik 
chemistry 12
i nee help in this question any help would be appreciated the question is 1.Given the reaction: A(g) + 2 B(g) > C(g) + D(g) ��H = 40 KJ, a. If the activation energy in the forward direction is 80KJ, plot the PE diagram. b. Plot a KE
asked by adam saunder 
math
What is an example of commutative property of multiplication?
asked by Gio 
Algebra
Need help with these 4. Does the following set of coordinates make a horizontal, vertical, or diagonal line when connected with a straight line? (4,5) (2,5) Answeryes 10. Classify the number as rational or irrational: 4.126532 14. Which of the
asked by mysterychicken 
Science
Melting point of gold is 1064*C What is the freezing point of gold?
asked by rhon 
Distribution & probabilities
Fluctuation in the prices of precious metals such as gold have been empirically shown to be well approximated by a normal distribution when observed over short interval of time. In May 1995, the daily price of gold (1 troy ounce) was believed to have a
asked by SEMALAW 
Science
Is a liquid denser than a gas or less dense or the same density?
asked by rhon 
Science
What is formed when solid copper sulfate is mixed with water?
asked by rhon 
Science
How would I describe some of the physical and chemical properties of a chalk board?
asked by rhon 
Calculus
Evaluate the triple integral _E (xy)dV where E is a solid tetrahedron with vertices (0,0,0), (4,0,0), (0,1,0), (0,0,4)
asked by Salman 
Maths
Evaluate the triple integral _E (xy)dV where E is a solid tetrahedron with vertices (0,0,0), (4,0,0), (0,1,0), (0,0,4)
asked by Salman 
Math
Tameka's mother made fish fries for lunch. She made fish ice cream for dessert. It takes 6 small fish to make 1 1/2 cups of ice cream. How many fish does it take to make 4 cups of ice cream?
asked by Marie 
math
what are the multiples of 12 and 15?
asked by Gio 
art 101
the Egyptians and the Greeks. What are the similarities and differences between the two? What does the sculptural representation of the human form say about each culture?
asked by Denise 
math
Simplify the radical expression. sqrt 30/120n^2
asked by al 
business
Which economic system is the best solution to handling a crisis of epic proportion?
asked by amy 
Precalculus
Hi im unsure how do this problem becasue I do not how to go about these types of problems were you make monthely payments each month of the same amount... Janene contributes $50 per month inot the Chaing China Bond Fund htat earns 7.26% annual intrerest.
asked by Kate