Questions Asked on
March 14, 2010

chemistry
Determine the number of molecules of ethanol (C2H5OH) in 47.0 g. Can someone explain to me how to do this?
asked by Lola 
Physics
A 40 W (120V) light bulb has a tungsten filament of thickness 0.035 mm. The filament's operating temperature is 1500 degrees C. PART A How long is the filament? PART B What is the resistance of the filament at 20 degrees C?
asked by JOTHEY 
Chemistry
How many carbon tetrachloride (CCl4) molecules are in 3.00 mol of CCl4? How many carbon atoms? How many chlorine atoms? How many total atoms? I have no idea how to do all of this =\
asked by Astrid 
CHEIMSRTY
Methylamine (CH3NH2) forms hydroxide ions in aqueous solution. Why is methylamine a BrønstedLowry base but not an Arrhenius base? I need help on this question. Please explain this to me!
asked by Sean 
Chemistry
Kb for aniline is 4.3 x 10^10. What does this tell you about aniline? Please help!
asked by Paul 
Trig
How do I solve the following? sec 3 theta/2 = 2 on the interval 0
asked by Katie 
Chemistry
Complete and balance this equation for a combination reaction. Be + O2 ==> Would it be Be + O2 ==> BeO2 ? or... 2Be + O2 ==> 2BeO ? Why??
asked by Jack 
CHEMISTRY
Which of the fallowing compounds may be Arrhenius acids: CH4, SO2, H2S, Ca3(PO4)2 Can you please explain how you got the answer because I don't understand how you can tell.
asked by Sean 
ap physics
If one micrometeorite (a sphere with a diameter of 1.0 multiplied by 106) struck each square meter of the moon each second, it would take many years to cover the moon with micrometeorites to a depth of 1.5 m. Consider a cubic box, 1.5 m on a side, on the
asked by shanster 
chemistry
calculate the moles of aluminum ions present in 250.0 g of aluminum oxide??
asked by jeaninne 
MATH
John forgot to pay his $364.00 income tax on time. The IRS charged a penalty of 12% for the 55 days the money was late. Find the penalty that John paid. (Use a 365 day year.)
asked by Tyga 
physics
In a ballistic pendulum experiment, projectile 1 results in a maximum height h of the pendulum equal to 2.4 cm. A second projectile causes the pendulum to swing twice as high, h_2 = 4.8 cm. The second projectile was how many times faster than the first?
asked by Anonymous 
English 1
Revise the following paragraph, improving it without changing its overall meaning. Pay particular attention to any potential sentence fragments. Cooking is not as easy as it looks. For example, the terminology. Selecting the freshest ingredients for
asked by pam 
Finance
) What is your Average Payment Period if your Accounts Payable are $20,000, cost of Goods Sold is $200,000, and Sales are $500,000?
asked by Vicky 
chemistry
what is the pressure of H2 if the hydrogen gas collected occupies 14L at 300K and was produced upon reaction of 4.5 mol of Al?
asked by brenda 
ap physics
A skier of mass 70.5 kg is pulled up a slope by a motordriven cable. How much work is required to pull the skier 60 m up a 38° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
asked by shanster 
Math
A pet shop has a total of 17 dogs and birds. Altogether there are 48 feet. How many dogs are there and how many birds? A) 7 dogs and 10 birds B) 9 dogs and 8 birds C) 6 dogs and 11 birds D) 8 dogs and 9 birds I got the answer C is this right?
asked by Tyga 
math
A baseball is thrown straight up from the rooftop 192 feet high. The function s(t)=16t^2+64t+192 describes the ball's height above the ground,s(t), in feet, t seconds after it was thrown. How long will it take for the ball to hit the ground? Explain
asked by Anonymous 
12th grade economics
Frank wants to buy a $10,000 car. The car dealer offers him financing of 60 payments at 9% interest. What will his payments be assuming he pays $0 down?
asked by Courtney 
Math Base
Convert the number to the indicated base. 53six to base three
asked by Tyga 
Precalculus
Suppose that a polynomial function of degree 4 with rational coefficients has i and (3 + square root of 3)as zeros find the other zeros
asked by Arielt 
physics
The CM of an empty 1300 kg car is 2.40 m behind the front of the car. How far from the front of the car will the CM be when two people sit in the front seat 2.80 m from the front of the car, and three people sit in the back seat 3.80 m from the front?
asked by Anonymous 
chemistry
a scientist wants to make a solution of tribasic sodium phosphate ,Na3PO4, for an experiment. how many grams of Na3PO4 will be needed to produce 750 mL of a solution that has a concentration of Na+ ions of 1.30M
asked by kathryn 
Chemistry
A 25.00 ml sample of a standard solution containing 1 g of CaCO3/L required 25.20 ml of EDTA to fully complex the Ca present. Calculate the volume of EDTA stoichiometrically equivalent to 1.0 mg of CaCO3. From the volume of EDTA required in titrating the
asked by Anonymous 
Chemistry
Complete and balance this decomposition reaction HI ==> is this reaction HI ==> H + I ? or... HI ==> H2 + I2 ? why?
asked by Jack 
Chemistry
Which of the following systems could act as a buffer? A. HCl/Cl B. NaOH/OH C. HSO4/SO42 D. H3O+/OH E. All of the above my guess is C because A and B are too strong, but I am unsure of D. Can someone explain how to think through this?
asked by Trixie 
college physics
You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 50 km/h (31 mph). A new model of mass 1400 kg takes 0.18 s from the time of impact until it is brought
asked by Anonymous 
Physics
An advertisement claims that a particular automobile can "stop on a dime". What net force would actually be necessary to stop an automobile of mass 850Kg traveling initially at a speed of 43.0 km/h in a distance equal to the diameter of a dime, which is
asked by Jess 
AP BIO
2. Suppose the DNA molecule were composed of six monomers. In addition to the monomers A, T, C and G, two other monomers, O and P, were present. Furthermore, O and P were known to pair only with each other. Which of following statements regarding this kind
asked by Tom 
Writing
Can you please tell me whats right and whats wrong..Thank you. Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. _x_True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a
asked by Lorie 
finanance
2. You charged $ 1,000 on your credit card for Christmas presents. Your credit card company charges you 16 % annual interest, compounded monthly. If you make the minimum payments of $25 per month, how long will it take [to the nearest month] top pay off
asked by ananoumous 
maths
Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones.What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color? ( could you tell me the steps ) thanks.
asked by thommini 
Chemistry
100 mL of each of the following solutions is mixed; which one of the mixed solutions is a buffer? A) 1.0 M NH3(aq) + 0.6 M KOH(aq) B) 1.0 M NH4Cl(aq) + 1.0 M KOH(aq) C) 1.0 M NH3(aq) + 0.4 M HCl(aq) D) 1.0 M NH4Cl(aq) + 0.4 M HCl(aq) E) 1.0 M NH3(aq) + 1.0
asked by Trixie 
chem
What volumes of 0.53 M HNO2 and 0.46 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.55? HNO2
asked by jacky 
math
A pet shop has a total of 17 dogs and birds. Altogether there are 48 feet. How many dogs are there and how many birds?
asked by Tyga 
chemistry
what is the pH of .28 M HNO3 (aq) at 25 degree celsius? (Kw = 1.0 x 10 ^14)
asked by elizabeth 
Chemistry
Aspirin equilibrium is : HC9H7O4(aq) + H2O (double arrow)C9H7O4^(aq) + H3O^+ You have 2 tablets each containing 0.325g of active ingredient that you dissolve in water up to 225ml. Calculate the pH.
asked by Alan 
physics
What is the kinetic energy of a 62kg cyclist if she is moving on her bicycle at 8.2 m/s?
asked by trisha 
trig
if cot( theta) = 7.89, find tan(theta pi/2)
asked by hilde 
Base
Write the numeral in base ten. 130five
asked by Tyga 
Science
4)Explain why,when a soccer ball is kicked, the action and reaction forces don't cancel each other. a)The force of the player's foot on the ball greater than the force on the ball on the player's foot. b)They act on two different objects. c)The reaction
asked by Ira 
English
I need 3 themes and 4 quotes per theme for the book the bluest eye by toni morrison. i have one theme completely done. my other theme is sexual initiation and abuse, but i have no quotes for it. and i still need one more theme. help?
asked by Melanie 
calculus
A cold metal bar at 30 degrees Celsius is submerged in a pool maintained at a temperature of 40 degrees Celsius. Half a minute later, the temperature of the bar is 20 degrees Celsius. How long will it take the bar to attain a temperature of 30 degrees
asked by Debbie 
ALGEBRA
Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to adding polynomial expressions? How is it different? Provide a radical expression for your classmates to simplify.
asked by GGIFT 
AP BIO
1. A biologist measured the amount of DNA in several single diploid cells taken from a culture. He knew that these cells could divide mitotically, but not meiotically. His data is shown below: Cell Number and DNA content in micrograms: Cell 1 (11.1
asked by Tom 
Prin of finance
Which of the following statements are true of a “twoforone stock split?”: 1. It may signal higher future earnings 2. By creating more shares at a lower price, marketability may be improved 3. It increases the “Equity Section” of a company’s
asked by Donald 
math
Barbara knows that she will need to buy a new car in 4 years. The car will cost $15,000 by then. How much should she invest now at 10%, compounded quarterly, so that she will have enough to buy a new car? Round to the nearest cent
asked by Tyga 
English
Identify the sentence with correct subjectverb agreement. a)The crowd was yelling, "Defense, defense." b)The crowd were yelling, "Defense, defense." c)The crowd are yelling, “Defense, defense.” d)The crowd yelling, “Defense, defense.” I
asked by pam 
chemistry
What is the mass of a mole of electrons if one electron has a mass of 9.11 x 10^28 g?
asked by Jenny 
Precalculus
Suppose that a polynomial function of degree 4 with rational coefficients has i and (3 + square root of 3)as zeros find the other zeros show work please
asked by Arielt 
Stress
I'm having a tough time brainstorming ideas about the four stress factors. I have to know why it's important for people to learn to deal with stress. Then I need to describe social, mental, emotional, and physical stress factors and its impact on living.
asked by AL 87 
college physics
From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and assume the CM of the person moves a distance of 0.65 m from the standing to the seated position (that is, in breaking the fall).
asked by Anonymous 
compose
How many kilojoules of heat are released when 25.0 g of {\rm CO}(g) reacts completely with {\rm H_2}(g) to form {\rm CH_3OH}(g) at constant pressure?
asked by Ryan 
Geometry
The area of a circle that has a circumference of 12 pi cm is ______ pi m squared?
asked by Gene 
statistics
refer to a bag of marbles containing 5 green marbles, 4 red marbles and 2 yellow marbles. Three marbles are drawn from the bag, without replacement. What is the probabilty that all three marbles drawn are green?
asked by keisha 
Math
Solve by substitution: x + 2y =1 8x + 8y =4
asked by HELEN 
physics help please!!!
From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and assume the CM of the person moves a distance of 0.65 m from the standing to the seated position (that is, in breaking the fall).
asked by Anonymous 
physics
Find the tangential acceleration of a freely swinging pendulum when it makes an angle θ with the vertical. (Use theta for θ and g as necessary.) i tried 2.56 as an answer and it was wrong, so im guessing im suppose to use symbols?
asked by jade 
Chemistry
Suppose that we had used 25.5cm3 of 0.200M NaOH and 42cm3 of dilute HCl to reach the end point. What is the molarity of the Hcl acid? HCl = NaOh> NaCl + H20
asked by Anonymous 
CHEMISTRY
Methylamine (CH3NH2) forms hydroxide ions in aqueous solution. Why is methylamine a BrønstedLowry base but not an Arrhenius base? I need help on this question. Please explain this to me!
asked by Sean 
chemistry
Aqueous solution with a pH of 10.6 is diluted from 1 L to 1.5 L. What is the pH of the diluted solution?
asked by elizabeth 
college physics
A 12100 kg railroad car travels alone on a level frictionless track with a constant speed of 20.5 m/s. A 5850 kg load, initially at rest, is dropped onto the car. What will be the car's new speed? Please help!
asked by Anonymous 
chemistry
did i order the intermolecular forces correctly ionion > iondipole force > dipoledipole >ioninduced dipole> dipoleinduced dipole> hydrogen bond>dispersion bond
asked by eng 
chemistry
is Li3As a semiconductor
asked by eng 
English
How do you pronounce "Branche"? This is Wilm Rudolph's mother's name.
asked by rfvv 
ScienceChemistry
syringe filled with water and left by the sink in the sunshine. Ten minutes later sees little puddle of water under the syringe tip. What caused the little puddle of water to appear under the syringe tip? Use words particle and kinetic energy in
asked by Michelle 
math
A new temperature scale has the freezing point of water at 50 degrees and the boiling point of water at 125 degrees. Normal body temperature is 37 degrees C and 98.6 degrees F. Water freezes at 0 degrees C and 32 degrees F and boils at 100 degrees C and
asked by Joey 
math
A man entered an apple orchard through 7 gates. After picking some apples, he left. Upon leaving, he was required to give 1/2 of his apples plus an apple to the guard at the first gate. When he got to the second gate he was required to give half of his
asked by Joey 
Math
Solve log3 x + log3 8 = 4
asked by Hannah 
Finance
) If a stock pays a dividend of $1.30 annually, has earningspershare of $4.50, and closed yesterday at $76.50, then which of the following statements is true? (Approximation is fine!) a. The dividend payout ratio is 82.8% b. The dividend yield is 5.7% c.
asked by Vicky 
Physics
An electron and a proton execute uniform circular motion in the presence of a uniform magnetic field. If the radius of the circle is the same for both particles, which of the following statements is true? A)Both particles move in the same direction; the
asked by Sandra 
CHEMISTRY
Which of the fallowing compounds may be Arrhenius acids: CH4, SO2, H2S, Ca3(PO4)2 Can you please explain how you got the answer because I don't understand how you can tell.
asked by Sean 
social studies
what did freedom to former slaves and how did their lives change in the aftermath of the civil war? also could the federal government have done more to helpp southern africa americans after the civil war? please explain
asked by Dellaine 
finance
3. You decide to borrow $200,000 to build a new house. The bank charges an interest rate of 6% compounded monthly. If you pay the loan back over 30 years, what will your monthly payment be [rounded to the nearest dollar]?
asked by ananoumous 
English
1. They are a professor and a writer. 2. They are a professor and writer. 3. They are professors and writers. 4. He is a professor and writer. 5. He is a professor and a writer. (Which expressions are not correct?)
asked by rfvv 
English 1
Identify the sentence that is not a runon a)Some people are real risktakers; my cousin loves sky diving. b)My cousin loves sky diving yes some people are real risktakers. c)Some people are real risktakers my cousin loves sky diving. d)Some people are
asked by Sarah 
english1
Identify the complete verb: Max will be arriving on a flight this afternoon. a)will be b)will c)arriving d)will be arriving I think the answer is d.
asked by pam 
Math
Write the numeral in base ten. 130five A) 40 B) 60 C) 640 D) 650 I got A)40
asked by Tyga 
chemistry
How many moles of O2 are needed to combine with 0.288 mol Al to give Al2O3?
asked by . 
econ
Consider the following data about the goods market in a hypothetical closed economy. Assume that government expenditure is constant at $200 million. Also assume that there is equilibrium in the goods market at all times. Some of the pairs of interest rate
asked by sonia 
Business
Write an essay of about 300 words in which you describe in detail what constitutes a case study together with explaining what is analysis and types of input text in business case analysis.
asked by Anonymous 
algebra
I have tried this problem over and over and just not getting how to do it can someone help I don't want the answer I just need showed how to do it. solve using the formula L 0.000169d^2.27/h where L is the proper length in feet of the letters on pavement,
asked by summerwings 
physics
let q be the charge placed at vertices of square of side 'd' meters each what value of charge should be placed at the cetre of a square to get equilibrium condition at any one corner of a square
asked by suma 
english
after the rain ended, the sky became blue is this a complex sentence?
asked by jacob 
Strategies!
can u give me atleast 6 strategies. I have to write a 6 page essay and i have done 2 page so far but i still need more strategies, can u me lists of strategies please to make it easier for me. thnx!
asked by Thara! 
chemistry
The vapor pressure of water at 30 Celsius is 31.82 mmHg and the density is 0.9956 g/mL. What is the new pressure after adding enough sorbitol to make a 2.7 m solution?
asked by mister 
British Literature
Hello. I was wondering if someone can review my attempt to scan & indicate the ryhme scheme of the following lines from John Keats's "Ode on a Grecian Urn" ? When / old age / shall this gene/ration waste, ___ Thou/ shalt re/main, in mid/st of other woe ___
asked by Tamir 
finance
3. You decide to borrow $200,000 to build a new house. The bank charges an interest rate of 6% compounded monthly. If you pay the loan back over 30 years, what will your monthly payment be [rounded to the nearest dollar]?
asked by ananoumous 
Accounting
A company leases a piece of equipment to another company and appropriately records the 10 year lease as a sale. I have to determine the amount of profit to record in the first year  The lease payments are 500,000 for 10 years. The cost of the equipment is
asked by Sharry 
Writing
31. I had hoped the police would blame Bruce, not ___. __ me __ myself __ mineself __I 32. Some interviewers ____ have a clear sense of what they want in an employee, ask very tough questions. __ who __, who __ which __ that 33. A venture capitalist has to
asked by Lorie 
geometry
the base of a square prism has sides of 14in. What is the surface area of the prism
asked by NEL 
Chemistry
What is the structure of a tripeptide where glycine is first, serine is second, and alanine is third. Draw the structure in the proper zwitterionic form.
asked by Holly 
world history
Under whose reign did the Persian empire become the greatest military power of the ancient world?
asked by Paige 
physic
A long jumper's takeoff velocity is 10 m/s at an angle of 20o to the horizontal. His centre of gravity is 1 m above the ground at takeoff and is 0.5 m above the ground at landing. a)How far does he displace his centre of gravity horizontally between
asked by intan 
econ
Consider the following data about the goods market in a hypothetical closed economy. Assume that government expenditure is constant at $200 million. Also assume that there is equilibrium in the goods market at all times. Some of the pairs of interest rate
asked by sonia 
research paper
How do you do the little number cite next to a qoute in a research paper in microsoft word?
asked by mic 
geometry
A trapezoid has height 8 and area 28.What are the lengths of its bases
asked by NEL 
Chemistry
Sally is goint to determine the quantity of MgSO4 by titrating the Mg2+ ions using EDTA. What is the concentration of Mg2+ (in mmol/L) in the sample if it takes 22.9 mL of EDTA solution with concentration of 0.01108 mol/L to titrate 50.00 mL of the sample
asked by Cody 
College Physics
A 3400 kg open railroad car coasts along with a constant speed of 7.50 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 5.10 kg/min.Ignoring friction with the tracks, what is the speed of the car after 85.0 min ?
asked by Sandy 
Happy Pi Day
Happy Pi Day to all math "nerds" Even Google changed their log today. http://www.squidoo.com/PiDay
asked by Reiny 
college
The diameter of a wire should be 8 cm. It follows a normal distribution and has a standard deviation of 0.01 cm. A person tests each delivery by taking 5 samples, accepting the goods only if the mean is at most 8.01 a) Find the probability of type 1 error?
asked by Allan 
trig
sin²u + tan²u + cos²u/ sec u simplify
asked by hilde 
Math
From a base elevation of 7000 ft, a mountain peak in colorado rises to a summit elevation of 14507 ft over a horizontal distance of 15842 ft. find the grade of the peak.
asked by Rita 
Chemistry
The active ingredient of the antacid is CaCO3 and so Sally chose titration with HCl as a method for analysis. What is the mass (in g) of the CaCO3 in the sample of antacid, if it is titrated by 21.2 mL of HCl solution with concentration of 0.1048 mol/L to
asked by Cody 
Finance
If an instrument has a 10.7% Nominal Return, the inflation rate is 3.1%, and your tax rate is 28%, what’s your approximate “Real AfterTax Return?” a. 4.6% b. 7.6% c. 5.8% d. none of the above
asked by Vicky 
macroecon
Assume that there is equilibrium in both the goods and the money market at all times. Suppose that the president of the United States has decided to start a war. The government will have to increase spending to pay for weapons, equipments, and
asked by angad 
corporate finance
The third owner is in favor of a share repurchase. HE Argues that a repurchase will increase the company's P/E ratio, return on assets, and return on equity. Are his arguments correct? How will a share repurchase affect the value of the company?
asked by wendy 
dulaney hi
what is the maxium mass of chlorine that could be released in the stratosphere by 100g of ech compound
asked by toni 
stats
what is the probability that at least one of the marbles drawn is green? I thinks it's 1/11 but not sure. Then what is the probability that only one of the marbles drawn are green?
asked by keisha 
calculus
Find derivative(use logrithmic functions). y=x^cosx
asked by Zoey 
biology
What is equilibrium?
asked by tybresha 
human resources
Search the Internet to find at least three examples of mission statements for human service organizations. · Create a 10 to 12slide PowerPoint® presentation that addresses the following in regard to each mission statement.
asked by alma 
Math
What is 38 tmes 93 divided by 3 minus 4
asked by Jane 
social
Ok, I think both of these are syndicated but im so confused! The type of programming aired by a station with which they "affiliate" is called A) syndicated programming B) local origination C) network programming D) non of the above This type of
asked by Kevin 
English
1. He beat/won Don at the game. 2. He won/beat the game. 3. He beat/won the team yesterday. 4. He won/beat at the competition. (Which verb do we have to use?) 5. She won a bronze medal at the Olypic Games. 6. She got a bronze medal at the Olympic Games.
asked by rfvv 
business 210
Assignment: Developing Good Business Sense – DUE DAY 7 in IF · Resource: Ch. 12 of Introduction to Business · Read the Developing Good Business Sense activity on p. 394 of the text. · Answer Questions 1–4 from the activity in a 700 to 1,050word
asked by Anonymous 
Math
Convert the number to the indicated base. 53six to base three
asked by Tyga 
chemistry
There is 0.150 moles of H2 and I2, and are brought to equilibrium in a 3.30 L flask. The equation is H2 + I2 = 2HI. Find the equilibrium amounts of H2, I2, and HI. I'm not getting the correct answer. I set up the formula as x^2/(.04545x) (.04545x). To
asked by anonymous 
Social Studies
What started the school segregation?
asked by Shadow 
science
how does newton's laws apply to a toothpicks bridge
asked by lea 
Biology
11. You are searching for a gene that traces its ancestry to an ancient gene in fish. Evolutionarily older fish, like the coelacanth, have only one copy of this gene. More modern fish, like a threespine stickleback, have three. Modern humans and mammals
asked by Lisa 
psy 210 HHHEEEEEELLLLPPPPP PLEASE!!!
my second health problem i had to choose is high blood pressure and i cant find more about it for this paper i need more words can anyone help plese Assignment: Psychology and Health Problems · Due Day 7 · Review Figure 4.3. · Summarize the
asked by bobbi help please 
Fiance applications
A stock’s 2009 Earningspershare is $4.50. Its Payout Ratio is 30%. Next year in 2010 it expects its Earningspershare to be $4.75. Answer the following two questions please, and select the correct choice: 1. What is the current 2009 dividend? 2. What
asked by Suzie 
4th grade
to cause a commotion that could ruin a plan:rock_ _ _ _ _ _ _
asked by Desriee 
accounting
preferred shares, $2,89 noncumulative, 10,000 shares authorized, issued and outstanding for $498,700 common shares, unlimited shares authorized, 120,000 shares issued and outstanding for $946,900 and retained earnings is 450,530 the only share
asked by samir 
fianance
3. You decide to borrow $200,000 to build a new house. The bank charges an interest rate of 6% compounded monthly. If you pay the loan back over 30 years, what will your monthly payment be [rounded to the nearest dollar]?
asked by ananoumous 
425 SOC
I need help Identifying the attitude, values, and ideologies that tend to perpetuate gender inequality?
asked by meshelle 
College Physics
If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off? I don't understand.
asked by J 
chemistry
Starting with o.3700 mol CO (g) and 5.400*10^2 COCl2 (g), in a 3 liter flask at 668 K, how many moles of Cl2 will be present? CO + Cl2 =++COCL2 KC = 1.2*10^3 at 668 K
asked by anonymous 
algebra
write a quadratic equation having the given numbers as solutions 6  sqrt(2) , 6 + sqrt(2) thanks for any help
asked by Derotts3 
mental factors
I don't really get mental factors of stress. I need more clarification of this and figure out its impact on living.
asked by AL 87 
Literature
Can someone give me some comparisons between Leopold (Sand County Almanac) and Thoreau (Walden Pond)? Similarities and Differences.
asked by Cerise 
physics
A 17.1 cm focallength lens is used to project 35 mm slides onto a screen 4.77 m from the projector lens. What must be the width of the screen ( m) if the image of the slide is to just fill the screen? The width of the image on the slide is 34.3 mm.
asked by Andy 
geometry
what is the area and the perimeter of a square farm lot whose side mesure 21 m?
asked by shr=er 
ECONOMICS
WHAY IS GLOBAL ECONOMIC CRISIS?
asked by SH 
marketing
The process of naming broad productmarkets and then segmenting them in order to select target markets and develop suitable marketing mixes is called
asked by Rossy 
chemistry
how many grams of solute are in 250ml of 0.500M glycerin . (C3H8O3=92.1 amu)?
asked by tom 
social
Can you help me please, i think it is false but im not sure A unique format is one for which there is no similar competition in the market. A) True B) False I also think this one is false but again not sure A "head to head" format refers to a format that
asked by Kevin 
trig 26
simplify to a constant or trig func. 1. sec ²utan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a basic trig function. 2. sin(theta)  tan(theta)*cos(theta)+ cos(pi/2  theta) 3. (sec y  tan y)(sec y + tan y)/ sec y combine
asked by hilde 
math
A 4year magazine subscription costs $228 and may be canceled at any time, and a prorated refund will be made for the remaining weekly issues. If Siran cancels his subscription after receiving 32 issues in the 2nd year, what refund would he get? Assume
asked by jene 
English
What's your favorite class? 1. It's a math class. 2. It's math class. 3. It's math classes. 4. Math class is my favorite. 5. Math classes are my favorite. 6. A math class is my favorite. (Which answers are correct? Are all correct?)
asked by rfvv 
social
Ok, I think both of these are syndicated but im so confused! The type of programming aired by a station with which they "affiliate" is called A) syndicated programming B) local origination C) network programming D) non of the above This type of
asked by Kevin 
Travel Agent
A ______ is the most commonly used input device.
asked by Dolly 
Physics
24 kg of water are heated by a thermostatically controlled 4Kw electric heater. The thermostat switches the heater on at 60 degree centigrade and off at 65 degree centigrade. If the time between switching off and switching on is 3.0 min, what will be the
asked by Edwin 
Physics
Two spheres S1 and S2 of the same metal and having the same type of surface, have radii 20cm and 10cm respectively. Compare their rates of fall of temperature as they cool (a) when S1 is at 50 degree centigrade, S2 is at 40 degree centigrade, the
asked by Edwin 
english1
Identify the sentence with correct pronounantecedent agreement. a)Neither of the boys submitted his essay on time. b)Neither of the boys submitted their essay on time. I think it is b but i am not sure.
asked by pam 
chemistry
according to van deer walls equation, why does H2S have higher parameter a than CO2
asked by bme1 
social
Are both these false? A unique format is one for which there is no similar competition in the market. A) True B) False I also think this one is false but again not sure A "head to head" format refers to a format that is trying to successfully program
asked by Kevin 
classroom instruction
• Create a 4 to 6slide Microsoft® PowerPoint® presentation of the content for the learning packet by addressing the following points: o Choose a reliable Internet site and review the content to ensure that it is appropriate for the age group and the
asked by scooby 
math
how would you factorise a) 9x^2  49 b) 9x^2  121 c) 49x^2  25x^2 thankyou
asked by david 
history
What problems did South Africa face in its transition to demacracy? What have been the magor achievments and problems in the new South Africa?
asked by Sara 
Chemistry (or Physio/Biochem)
Asthma affects about seven percent of the population. During an asthma attack smooth muscle cells in the bronchi constrict, the airways become inflamed and swollen, and breathing becomes difficult. What effect might an asthma attack have on blood pH? A. pH
asked by Trixie 
poetry
The Line"I Wandered lonely as a cloud" is an exaple of what ?
asked by robert 
Chemistry
Determine the concentration of Mg2+ (in mmol/L) in the unknown solution (Note: details and additional information to solve the problem are provided in your lab manual): Mass of EDTA: 0.606 g Volume of EDTA used in titration (step 1): 10.48 mL Volume of
asked by Johnathan 
Math
solve by addition method: please show work. 3x + y = 3 2x 3y =7
asked by HELEN 
trig
how do you simplify "[sin(x)+tan(x)]/[1+sec(X)]"
asked by Brad 
History
Analyse the view that decolonisation was the product of a combination of forces beyond the British government's control.
asked by Anais 
social studies
could the federal government have done more to help Southern Africa Americans after the civil war? please explain
asked by Dellaine 
Science 6th Grade
When the frequency of a note is twice the frequency of another, the notes are a(n) ______________ apart.
asked by David 
business math
It's a lot of words, but short questions. I got most of it, but I'm confused on a and c. Help would be greatly appreciated: Theater Seven wants to increase its popularity. They want to determine the best number of newspaper (N), Radio (R), and Television
asked by peter 
Calculus
Need the answer to find dy/dx y=(1+cos^4(t/12))^3
asked by Anonymous 
math
A 3year magazine subscription costs $123 and may be canceled at any time, and a prorated refund will be made for the remaining weekly issues. If Alan cancels his subscription after receiving 22 issues in the 2nd year, what refund would he get? Assume
asked by jene 
History
factors that led to the creation of Isreal and the outbreak of the 194849 war
asked by Sara 
Gen 200
Prepare a 700 to 1,050word paper in which you explain the relationship among professional values, ethics, and career success. Address the following items in your explanation: Define values and ethics. Identify at least three sources of professional values
asked by Alida 
English
Thank you for your corrections! I wonder if you could possibly have a look at these other sentences on Defoe's Robinson Crusoe. My doubts concern the words preceding the question marks. Thank you very much for being so cooperative. 1) He attacks them and
asked by Franco 
Math(Please help)
Solve log3 x + log3 8 = 4
asked by Hannah 
college Psychology
I am having trouble describing the interaction (How does effect of one Independent variable depend on level of other independent variable and why?) My 1st independent variable is Type of Stimulus: with 2 levels pictures and words. My 2nd independent
asked by James 
Social Studies
Is this true or false: The radio business and the record business are interdependent; they have strong ties between them. i think its true and also is this true or false Radio programming can derive from locally produced, syndicated or network programming.
asked by Kevin 
Math
Expand: log7= 3sqrtx / x^2y
asked by Hannah 
computers
How does a computers benefit from having all in one computer security systems installed?
asked by Bailey 
history
I need help on these questions. I'd really appreciate if Ms. Sue helped me out, since she's an awesome tutor. =) 1. In their 1994 Contract with America, Republicans pledged to A. renew the "Star Wars" initiative (what is the "Star Wars" initiative anyway?)
asked by Meeha 
english
the activity of scaling rocky cliffs
asked by jennie 
Math
unscramble the letters UEEMTTRARR to make a math word
asked by Lori 
macroecon
Assume that there is equilibrium in both the goods and the money market at all times. Suppose that the president of the United States has decided to start a war. The government will have to increase spending to pay for weapons, equipments, and
asked by angad 
Chemistry
The standard electrode potentials for three electrode systems are: Ti^3+(aq) + e^ > Ti^2+ E= 0.37 Fe^3+ > Fe^2+(aq) E= +0.77 Ce^4(aq) + e^ > Ce^3+(aq) E= +1.45 Using the data above, deduce which species is the best reducing agent, giving a
asked by Kari 
English
I just want you to check my word choice. There are a few sentences I rephrased I'm not sure of.(Sentences 2.3.4). I really hope you'll help me improve my writing skills. Thank you for your help. 1) His father was a German from Bremen, who first settled in
asked by Franco 
social studies
how did the events in Kansas contribute to the onset of the Civil War?
asked by Dellaine 
science
I am doing a project on paper planes, and I don't know what they mean by indepent and dependent variable, I know I want to see what flies further, a light weight paper plane or a plane made of heavier paper, but then they ask about the dependent and
asked by kristjan 
Calculus
Dy/dx of e^4square root of x
asked by Anonymous 
math
If an object is dropped from a 686 foot cliff and hits the ground in 7 seconds, how far did it fall in the first 3 seconds?
asked by zdruy 
Math
Perform the indicated operation let f(x)=x^27x9 find(a+h)f(a) and simplify
asked by Anonymous 
trig
simplify to a constant or basic trig function.. 1+tan(x)/1+cot(x)
asked by hilde 
math
How do I solve the equations using the elimination method: .3x.2y=4 and .4x +.3y= 49/23 Normally I would multiply the decimals by 10 to make them whole numbers, but that fraction is really throwing me off. What do I multiply to eliminate that fraction?
asked by bob 
french
what does nous avons bu un cafe mean?x
asked by rachel 
Math
How do you plot the yaxis of a 15 by 15 square graph with the points ranging from 0.1 to 27.8?
asked by Kay 
Prin Finance
Your company pays a dividend of $2.35 per share and expects no growth in this dividend at all, it will remain at this level indefinitely in management’s opinion. Theoretically what will this stock’s price be today if investors require an 8% rate of
asked by Donald 
math
How many times does each digit (0 through 9) appear in a list of counting numbers from 1 to 100 inclusive?
asked by Joe 
Intro to LAN technologies
58. You have been contracted to build a network for a multimedia development firm that currently uses a 10Mbps Ethernet network. The company requires a highbandwidth network for the multimedia team, which constantly views and manipulates large files
asked by Sylvia 
Chemistry
what is the chemical formula for Petrolatum and Petroleum Distillates?
asked by Ryan! 
pc basic
A CDRW is a type of
asked by Dolly 
Finance
Is the return on 1year tbond risk free? Why is a 8% tbond idependent of the state of the economy %'s?
asked by Anonymous 
Calculus
Dy/dx of e^4square root of x
asked by Anonymous 
Writing
23. Which portion of this sentence followed by a letter is not parallel? The company president inspired his employees (A), charmed the press (B), and redefined his company's strategic plan (C). __A __B __C __No error
asked by Lorie 
statistics
2. The daily maximum temperature (T) on an island has approximately a normal distribution with a mean of 78 degree (F) and a standard deviation of 5 degree F on what proportion of days is the maximum temperature: a. Greater than 70 degrees F b. Greater
asked by sherry wilson 
economics
concepts and problems in Macroeconomics Ireland's high unemployment rate
asked by Pheobe01 
math
1. Imagine you are in the market for a new home and are interested in a new housing community under construction in a different city. a. The sales representative informs you that there are 56 houses for sale with two floor plans still available. Use x to
asked by john 
geometry
A type of pyramid where all faces are triangles?
asked by Gene 
history
why did people think they could be free from suffering through buddhist teachings?
asked by sally 
chemistry
which reactant has been oxidized?
asked by nay gaw so 
Writing
Could someone please help me write this sentence/sentences and punctuate it properly: Additional key questions answered by the management plan include: how the work is to be completed to achieve the project goal, how the changes will be monitored and
asked by Robert 
Chemistry
If 4.56 grams of NaOH and 56.3 grams of Ca(OH)2 are added to enough water to make 1.50 L of solution, what will the pH be?
asked by Alice 
Social Studies
Why is school desegregation an important piece in the struggle for civil rights? Also, how did this change people's pointofview toward race relations in American? Thanks
asked by Shadow 
Coom 220
How do you know when sources are reliable?
asked by Anonymous 
Algebra
41(2x+4)< or + to 2(x+1)+x Use setbuilder notation to describe the complete solution. {x/x__ __}
asked by Liz 
math
what is the inverse of (x3)^2+2 ((x3)squared plus 2))
asked by nevaeh. 
English
I forgot to include these sentences. If you could possibly tell me if they are OK? I'm preparing a dissertion on this as part of my university course. 7) In addition, he told him that only desperate men and very fortunate men went abroad, he said. He was
asked by Franco 
computer studies
What is a computer manufacture
asked by g 
Social
Ia Rush Limbaugh, as carried on WBEN radio in Buffalo is an example of network programming and is All things Considered", as carried by WBFO in Buffalo is an example of network programming as well
asked by Jake 
Calculus
suppose that f(5)=5 and the limit as x>5 is 4f(x)20/(x5)(x+5)=10 find derivative of the function.
asked by Anonymous 
physics
projectile motion question need help working through it an airplane travelling 1001meters above the ocean at 125km/h is going to drop a box of supplies to shipwrecked victims below. a) How many seconds before the plane is directly overhead should the box
asked by jake 
algebra
5 Times the numerator of the solution to 783h=21h49
asked by Anonymous 
chemistry
for thermodynamic, standard is 25 celsius and 10^5 Pa, so in this case does it mean that 1atm=10^5 Pa while for stp 1atm=101325 Pa
asked by bme1 
425 SOC
Does anyone think that a child should witness "good and bad" circumstances? Is it good for a child to see different perspectives of "reality" or no?
asked by meshelle 
7th grade
what cavilions went on and became faus after the first fleet
asked by Anonymous 
social
The "jack fm" format is an attempt to stimulate the random programming of an ipod on shuffle. True or False I'm really not sure what it is.
asked by Kevin 
HRM/240
I have to write an affirmative action policy. I have looked at examples but I am so confused as to which way I am suppose to write this thing. Any suggestions?
asked by Lisa 
math
Theses are just some problems i did not understand how to do so if you could please explain and write the answer(: anything helps thank you(: 2. Simplify (3x^11z^5)^3 b. (3x^5)^ 3 / 2x5(3y)^4 c.3x^5)^ 3 / 2x ^ 5(3y)^4 (same as b but  5 is the
asked by Alyssa Pacheco 
chem
why does the temperature decrease as the internal energy of a system decrease?
asked by kim p 
math
give the prime factorization of 189
asked by stephanie 
Physics
The heat capacity of a mercury thermometer is approximately equal to the volume immersed in metre cube multiplied by a constant x. If the densities of glass and mercury are 2.40 x 10^3 kgm^3 and 1.36 x 10^4 kgm^3 and their specific heat capacities are
asked by Edwin 
math
solve with addition: 3x + y = 3 2x 3y = 5
asked by HELEN 
math
Expand: log7= 3sqrtx / x^2y
asked by Hannah 
Science
I am making a pedigree and I want to know what do you call a person that Talks Alot????
asked by Alisha 
Calculus
need answer to find dy/dx y=e^2x+3*e^x1
asked by Anonymous 
Science
Where does the energy go when you melt chocolate?
asked by Robert 
history
does any side in the Chechen conflict hold the high ground morally? Have recent developments increased the likelihood of peace in CHechnya?
asked by Sara 
Algebra
Solve the poloynomial x^3+4x^2x4=0
asked by Anonymous 
History
How did the outcome of school desegregation help strengthen our nation and its people overall?
asked by Anonymous 
scienc
Resources: Ch. 5 of Visualizing Environmental Science and Appendix C „h Due Date: Day 2 [Main forum] „h Review Ch. 5, The Flow of Energy Through Ecosystems. Then, complete Appendix C. „h Post your response to the following: Identify the fruit or
asked by Anonymous 
English
Thank you very much. I was pleased I didn't make any mistakes this time. I still have a few more sentences I forgot to post to you. 1)The hero of the novel was always the bourgeois man with his problems. He was generally the mouthpiece of the author. The
asked by Franco 
Science 6th Grade
Light, XRays, and radio waves contain _____________ with different amounts of energy.
asked by David 
8th grade science
what functions does a nuclear membrane, chromatin, and nucleolus have
asked by gerry 
cjs/200
Describe the purposes of criminal law.
asked by Anonymous 
math
2x^2+7x+3
asked by alyssa 
HCA/210
the role of health care workers in determining quality care
asked by Cindy 
history
how would you describe how you spied for the colonist in the american revolution
asked by mike 
modern science
can someone pleaseexplain to me what cathodic protection is and how it works? i understand that a metal gets charged but what does that do? Thank you =)
asked by Ryan! 
p.e theory
explain how stregths and weaknessess can affect your health and efficency in sport?
asked by lily