Thursday
October 30, 2014

Posts by Angel


Total # Posts: 877

japan
yes
April 16, 2010

Chemistry
The molarity of Sr2+ in a saturated solution of SrSO4 was determined to be 0.000500 M. Calculate the solubility product constant (Ksp) for SrSO4. SrSO4(s) = Sr^2+(aq) + SO4^2- (aq) Molar Mass (g/mol) SrSO4 183.68 This is what I know: Ksp = [Sr][SO4]
March 31, 2010

4th grade
what is 96/4
March 25, 2010

Math
How do you do this problem because i feel like i did it wrong (3ã2 + 4)^2 (3ã2 + 4)(3ã2 + 4) 9ã4 + 12ã2 + 12ã2 + 16 9*2ã2 + 12ã2 + 12ã2 + 16 18ã2...
March 24, 2010

statistics
A data set consists of a set of numerical values. Which, if any, of the following statements could be correct? There is no mode. There are two modes. There are three modes.
March 13, 2010

English
For number 2, why don't you just say that a simile is a figure of speech that draws a comparison between two different things, using like or as.
March 10, 2010

english
Well, criticism can make me weak at times; but I don't lose my courage. I gather enough courage to defend myself, and I have made criticism my strength today. I hate it how people bad talk about me, but then again, hearing those comments I make myself stronger, and ...
March 10, 2010

english
Has any one of you ever been criticized at a point in your life? If you have then how has it felt? Do you take criticism to be your weakness or strength.
March 10, 2010

Maths
if q>0, how can u use the graph of y =sin theta to draw the graph of y =sin theta +q?
March 10, 2010

Ancient China
what tool did they use?
March 6, 2010

Ancient China
What tool did the ancient China people use to try to communicate with the dead?
March 6, 2010

Chemistry
The value of the equilibrium constant, Kc, at a certain temperature is 4.20 x 10-2. Would the reaction as represented by the chemical equation favor reactants or products? Enter Product or Reactant. PCl5(g) = PCl3(g)+Cl2(g)
February 27, 2010

Chemistry
Calculate the value of the equilibrium constant (Kc) for the reaction displayed if the following equilibrium concentration data were measured at 1200 K: [Br2(g)] = 0.0001151 mol/L, [Br(g)] = 0.00004423 mol/L. Br2(g) = 2Br(g)
February 27, 2010

calculus
i got it nvm
February 25, 2010

calculus
A plane flying with a constant speed of 23 km/min passes over a ground radar station at an altitude of 5 km and climbs at an angle of 35 degrees. At what rate, in km/min is the distance from the plane to the radar station increasing 7 minutes later?
February 25, 2010

chemistry
what type of reaction is Al+S8=Al2S3
February 23, 2010

chemistry
The initial concentration for the compounds involved in the reaction displayed were determined to be [BrI(g)] = 0.3220 mol/L, [Br2(g)] = 0.3287 mol/L, [I2(g)] = 0.004086 mol/L. Calculate the value of the equilibrium constant (Kc) at 423.0 K if the equilibrium concentration of ...
February 21, 2010

algebra
I am working on homework with properties of triangles and i am lost can you help
February 18, 2010

calculus 2
Consider the solid obtained by rotating the region bounded by the given curves about the line x = -3. y = x^2 , x = y^2 Find the volume V of this solid. I keep finding the wrong answer.
February 16, 2010

Math
lets say you're doing addition 1/5 + 1/2 you can't add them directly until you find the common denominator. You can use LCM(lowest common multiple) for these it is ten. so 2/10 + 5/10 = your anwer
February 16, 2010

chemistry
A 893 g sample of a solution of the solute (CH3)2CO in the solvent C4H8O that has a concentration of 28.6 pph(parts per hundred) by mass (CH3)2CO is available. Calculate the amount (g) of acetone that is present in the sample. Molar Mass (g/mol) (CH3)2CO 58.05 C4H8O 72.12 ...
February 16, 2010

calculus
find the area of x^2+x+2 and 3x+3
February 16, 2010

Chemistry
just cross multiply. Since the temperature is the same. x/100torr = .309/60torr
February 15, 2010

7th grade
you are being very lazy. Use the internet, Books even.
February 14, 2010

us history
many possible reasons, main reasons are: 1) communism 2) trade negotiations
February 14, 2010

Chemistry
m means molality
February 14, 2010

Chemistry
it is parts per hundred
February 14, 2010

Math
i got 8.25 it would help if you placed spaces after each addition and subtraction so it would be easier to read.
February 14, 2010

math
Question: I am not sure what you are trying to ask but this sounds like algebra. And this questions seems incomplete. Please post any questions that are part of it. p = unit price in dollar of a rugby shirt 2000-100p = number of unit that he expect to sell R(p) = Total revenue...
February 14, 2010

Algebra Word problem
ans: a) if this is a parabola it would open down. b) since tickets sales would go up because of "hotness" of the show, but eventually it would go down. c)I cannot explain since no equation was given to me d) Peak; the parabola has a maximum point(since it opens down...
February 14, 2010

History
To expand, we would most likely be isolated since US people did not wish to take part directly in foreign affairs.
February 14, 2010

calculus
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. y=tan(11x) and y= sin(11x). -pi/33>= x<= pi/33 Then find the area S of the region. (Give an exact ...
February 12, 2010

Chemistry
Solutions are made that contain 0.1 moles of each of the following compounds below in 100 g of H2O. Choose the compound whose solution will have the lowest freezing point. NaBr MgCl2---- KClO3 CO2 MgSO4 I know the answer is MgCl2 but I don't know how to get it. I know I ...
February 10, 2010

health
There are 3 additional reasons why Tele-medicine is advantageous, as noted from UOP material. They are as follows: 1. Reduces the need for small towns to have own set of medical specialists. 2. Patients can stay close to home without having to transfer to major medical centers...
February 6, 2010

College Accounting
how do u find the cost of goods sold for a manufacturing firm
February 1, 2010

Plz Help. I am lost!!!Human Anatomy and Physiology
1. Macroscopic Neurology – trace impulse macroscopically through the nervous system from the brain to the muscle 2. Microscopic Neurology – trace impulse as it passes through the neuron, neuron to neuron, and across the NMJ 3. Sliding Filament Theory explanation 4. ...
January 31, 2010

HELP Plz - Introduction to Human Anatomy and Physi
Situation: You need to step up on a step to reach an object on a high shelf. Instructions: (Part one) Trace the nerve impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up one step. Include the ...
January 31, 2010

Application Assignment
Trace the nerve impulse, listing the steps in as much detail as possible, from which your brain sends the message to the appropriate muscles to step up one step. Include the steps involved in transmitting the impulse from one neuron to another and then to the muscle fiber. ...
January 31, 2010

CP Science 9th grade
independent variable variable dependent variable and the controlled variable. what are the definitions and some examples.
January 26, 2010

Chemistry
does that mean covalent bonds make molecules so there for C2H2 CS2 C2H4 Cl2O7 are the right answer
January 24, 2010

Chemistry
Select all cases in which the units comprising the solid are best classified as molecules. CrSe C2H2 CS2 C2H4 Cs2S Cl2O7 None Help please? I think they're all molecules
January 24, 2010

chemistry
Select all substances with an acceptor atom that can hydrogen bond to a hydrogen atom that is part of a polar covalent bond. I2 diiodine HI hydrogen iodide KrF4 krypton tetrafluoride O2 dioxygen C6H6 benzene HCl hydrogen chloride None
January 22, 2010

chemistry
Select all cases in which the units comprising the solid are best classified as individual atoms. C5H12 C3H6(propene) KBrO3 C3H8 AgNO3 C4H8(cyclobutane) None
January 22, 2010

Chemistry
Identify all substances that can be classified as an atomic solid. SeF6 C2H4O2 H2C2O4 S8 Ru La2(SO4)3 None
January 22, 2010

Chemistry
Select all cases where the substance shown has a molecular dipole. CHF3 fluoroform H2NCH2CH2OH ethanolamine CF3CF3 hexafluoroethane CCl2CCl2 tetrachloroethylene (CH3)3N trimethylamine CHFCHF cis-1,2-difluoroethene None
January 22, 2010

Chemistry
Identify all substances that can be classified as a molecular solid. Rn Zn(BrO3)2 TlNO3 La C2F4 C2F6 None
January 22, 2010

Chemistry
Identify all substances that can be classified as a network solid. SiCl4 Zr Fe2(SO4)3 SiH4 Co(NO3)2 Y None
January 22, 2010

Chemistry
Select all cases in which the units comprising the solid are best classified as molecules. ScBr3 Fe IF H2S IF5 Kr None
January 22, 2010

social
the first six its for a test
January 19, 2010

social
just tell me some facts about social studies things im bad at it
January 19, 2010

chemistry
me niether just picked a random one lol
January 19, 2010

math
pssssssh idk
January 19, 2010

social studies
the main states just tell me anything about social studies caus i have a test tomm.
January 19, 2010

social studies
wat are the basic states
January 19, 2010

physics
idk (:
January 19, 2010

6th grade
wat picture (;
January 19, 2010

physical education
no i would like to have guy friends in the same gym but of course they should have diffrent room to change in
January 19, 2010

math
thats hard wat grade are you in(;
January 18, 2010

algebra
A bin contains 8 blue chips, 5 red chips, 6 green chips, and 2 yellow chips. Question: drawing a red chip, replacing it, then drawing a green chip.
January 7, 2010

Com arts2
differentiate the intrapersonal to interpersonal communication...
January 7, 2010

Physics
can you help any further so i understand?
January 2, 2010

Physics
At the distance of the earth from the sun the pressure exerted by sunlight is avout 10^-5 Pa How much force does this pressure exerted on 10m^2 array of solar cells on a satellite when the array is perpendicular to the direction of the sunlight? If the satellite has a mass of ...
January 2, 2010

Science
can you help any further i really dont understand..
January 2, 2010

Science
At the distance of the earth from the sun the pressure exerted by sunlight is avout 10^-5 Pa How much force does this pressure exerted on 10m^2 array of solar cells on a satellite when the array is perpendicular to the direction of the sunlight? If the satellite has a mass of ...
January 2, 2010

AP Chemistry
Which value of Keq indicates in pressure on the equilibrium
December 28, 2009

AP Chemistry
Which value of Ke
December 28, 2009

AP Chemistry
What is the ÄG for Hydroden Peroxide liquid? Its not in my textbook.
December 28, 2009

history
What constitutes a middle class family?
December 16, 2009

history
Should youths who have been convicted of violent crimes be subject to the death penalty? Why or why not?
December 15, 2009

Physics
A propeller spins at 1880 rev/min. the equals 197 rads/sec b. What is the angular displacement of the propeller in 2.50 s ?
December 6, 2009

AP Chemistry
An aqueous antifreeze is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Calculate the molality, molarity, and mole fraction of the ethylene glycol.
November 28, 2009

Riddle
i dont know but a train ran over him!!!
November 22, 2009

critical thinking
thank you for you help
November 21, 2009

critical thinking
Select a topic of interest and explain how you would come up with a reliable sample for obtaining peoples’ opinions.
November 21, 2009

Movie review
This sounds like a theme to the movie. I have seen it and I would have to say that this pretty much sums it up.
November 21, 2009

AP Chemistry
what pressure would have to be applied to steam at 350.degress C to condense the steam to liquid water (Hvap=40.7kJ/mol)
November 19, 2009

Math
The perimeter of an equlateral triangle is 45 inches. A rectangle whose width is 1/3 its length has a perimeter of 48 inches. Which figure has the longest side? Explain.
November 19, 2009

AP Chemistry
A mineral crystallizes in a cubic closest packed array of oxygen ions with aluminum ions in some of the octahedral holes and magnesium ions in some of the tetrahedral holes. Deduce the formula of this mineral and predict the fraction of octahedral holes and tetrahedral holes ...
November 17, 2009

Physics
An asteroid revolves around the Sun with a mean orbital radius twice that of Earth's. Predict the period of the asteroid in Earth years. (6.38*10^6 radius) I dont understand how to solve this problem.
November 17, 2009

corporate finance
Given the following partial stock quote, what was yesterday's closing price for M&N Company? A. $42.75 B. $43.48 C. $45.25 D. $46.52 E. $47.24 Answer D 46.52
November 13, 2009

ENGLISH
Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had regrets about something in life. The regrets could have been about a relationship...
November 12, 2009

ENGLISH
Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had regrets about something in life. The regrets could have been about a ...
November 12, 2009

English
Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had regrets about something in life. The regrets could have been about a ...
November 11, 2009

English
Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had some regrets about something in life. Some of the regrets could have been about a...
November 11, 2009

math
What is the expanded notation in 426?
November 11, 2009

English
ok thank u
November 10, 2009

English
Now since I have corrected those errors, and change some stuff in the 2nd par. could u go back and check my whole paper for spelling, commons, semi colon, period, subjust verb agreement,and make sure that everything is correct. I would really appreciate it. Help:Please change ...
November 10, 2009

English
yes, it flow better then mines because I was putting to many words. Now since I have corrected those errors, and change some stuff in the 2nd par. could u go back and check my whole paper for spelling, commons, semi colon, period, subjust verb agreement,and make sure that ...
November 10, 2009

English
I have change the conclusion. In conclusion,we all have qustion ourselves with the question what was I thinking about? Often times the decision we make can really hurt us on down the road in our life. My biggest regret that I have is not taking advantage of high school as I ...
November 10, 2009

English
o ok also I read the conclusion link that u gave me, but my teacher told us to us the 1st par. to do the conclusion. She want us to just reword itaround.But if u know something else to do so that it will be better please state it.
November 10, 2009

English
ok could i add these sentence to the 2nd par. so that u will know what i mean. Reason being is that they come in contact with people that are violence. The sufficient person get them held down with children and that mean that they have to deal with each other for 18 years.
November 10, 2009

English
Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had some regrets about something in life. Some of the regrets could have been about a...
November 10, 2009

English
To begin with, people often justmake decision about things in their life, but they soon realize that they should not have made it. By them making that decision in their life;it could have caused them to have sleepless night,and pain. One thing that many people have rregrets ...
November 10, 2009

English
Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone have had some regrets about something in life. Some of the regrets could have been about ...
November 10, 2009

Physics
You row a boat, perpendicular to the shore of a river that flows at 3.0 m/s. The velocity of your boat is 4.0 m/s relative to the water. a. What is the velocity of your boat relative to the shore? b. What is the component of your velocity parallel to the shore? Perpendicular ...
November 8, 2009

Physics
An airplane traveling 1001 m above the ocean at 125 km/h is going to drop a box of supplies to shipwrecked victims above. a. How many seconds before the plane is directly overhead should the box be dropped? b. What is the horizontal distance between the plane and the victims ...
November 8, 2009

AP Chemistry
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 5.0 M HCI is required to react completely with 3.00 g of magnesium?
November 8, 2009

AP Chemistry
What acid and what strong base would react in aqueous solution to produce the following salts in the formula equation? Write the balanced formula equation for each reaction. a. potassium perchlorate b. cesium nitrate c. calcium iodide
November 8, 2009

2nd grade
59!
October 27, 2009

physics
A 12 g CD with a radius of 6.0 cm rotates with an angular speed of 40 rad/s. What is its kinetic energy? What angular speed must the CD have if its kinetic energy is to be doubled?
October 17, 2009

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Next>>

Search
Members