Questions Asked on
September 19, 2008

Chemistry
Calculate the DELTA H(rxn), DELTA S(rxn), DELTA S(universe), DELTA G(rxn). For each system below indicate whether DELTA S and DELTA H are positive or negative. Then indicate if the reaction is entropy driven, enthalpy driven or neither. C3H8(g) + 2O2(g) =>
asked by Zach 
Chemistry
What volume of 3.0M Na2SO4 must be added to 25ml of 1.0M BaCl2 to produce 5.0g of BaSO4? The answer is 7.1ml but I don't get it very well. I thought I could use mole ratio of the balanced equation, but it did not work. Thanks a lot!
asked by Andrew 
chemistry
Assuming the volumes are additive, what is the [Cl]solution obtained by mixing 210mL of 0.600M KCl and 630ml of 0.385M MgCl2 ?
asked by jay 
Geography
what large land feature lies between the mississippi river and the rocky mountains?
asked by Kim 
Economics: Market Equilibrium
Question: The market for shoes in 1997. Between 1997 and 1998, the equilibrium price of shoes remained constant, but the equilibrium quantity of shoes decreased. From this, you can conclude that between 1997 and 1998, the supply of shoes _______ and the
asked by Anonymous 
Chemistry
The standard atom for the atomic masses of all the elements is the atom of carbon which has 6 protons and 6 neutrons (12C) and is assigned the atomic mass of exactly 12. Under this standard, the atomic mass of iron, atomic number 26, is 55.845 u and the
asked by Anonymous 
Basic: Demand and Supply
Question: Can you please check whether or not my answer is correct? If not, can you please correct it? Scenario: The market for peanut butter in New York where over 1 million stores that sell peanut butter at any given amount. Suppose the price of bread
asked by Anonymous 
homework
Paul's tattered clothing are a symbol of his? A;.REBELLIOUS NATURE. B.UNCONCERN ABOUT WHAT HE LOOKED LIKE. C.DESIRE TO INSULT THE FACULTY. D.ECONOMIC CIRCUMSTANCES?
asked by Anonymous 
GEOGRAPHY
WHAT ARE FORMAL AND FUNCTIONAL REGIONS OF A CITY?
asked by QUINCE 
math
factor completely x^4y + 216xy^4
asked by jennifer 
Math
Jim has a special keyboard with the alphabet and ten numbers. Jim is blindfolded and does not know the position of the keys. Determine the probablility if two keys are pressed and a number is pressed first and a letter second.
asked by John 
Help!
I am stumped with a problem we are supposed to help our 4th grader with ... Study the number of pairs: 3  8 ; 4  11; 5  14; 6  17; and the it has blanks down to 10  29; ... ok we get this part ... adding 2 more each set ... now the questions ... If 50
asked by Frustrated mom! 4th grd MATH 
chemistry
How many moles of H2(g) will be formed in the reaction between 0.99mol CaH2(s)and 1.43mol water ?
asked by kayla 
chemistry
To determine the approximate mass of a small spherical shot of copper, the following experiment is performed. When 140 pieces of the shot are counted out and added to 8.6ml of water in a graduated cylinder, the total volume becomes 8.8ml . The density of
asked by tomi 
math
five more than one third of a number is 2.Find the number
asked by Joji 
math
what is the factor of 200? what is the factor of 99?
asked by brandy 
Chemistry
Indicate whether Delta S and Delta H is positive or negative. Then indicate if the reaction is entropy driven, enthalpy driven or neither. NaCl(s) + H2O(l) + Heat => NaCl (aq)
asked by Yuval 
School Learning Curve
Can someone explain to me the features of the 'learning curve'. I only just found out that teachers grade people's work against other students in the class, and it's something to do with "scaling", especially in English. I'm just curious on how it works,
asked by TK 
math
The product of 2 consecutive is 48,find the number.
asked by Ayo 
chemistry
Determine the number of moles of a) N atoms in 42.5g of Mg(NO3)2 b) N atoms in a sample of C7H5(NO2)3 that has the same number of O atoms as 12.6g C6H12O6
asked by tomi 
COM/220
Trying to create a thesis. Topic is on Cancer. Breast Cancer. Can someone help please. Need ASAP. Thanks.
asked by D 
math
factor completely (x+9)^2 5 (x+9)6
asked by jennifer 
Calculus
f(x) = {x^3  1, x> or equal to 1 {2x,x1 f(x)
asked by Billy 
accounting
how can information on a classifed balance sheet help indicate the future success or failure of a business?
asked by mrs johnson 
COM 140
WRITE a memo from Joe Gilmore, Training Department Manager, to Christine Lancaster, Training Supervisor, regarding her idea for the next training series
asked by LILSISTER 
life science
what is a characteristic of specialization
asked by fran 
math
find the GCF of 60&1200
asked by brandy 
misc
im sorry i know i have posted this before but i forgot to go back on this and look in the answer so now i cant find it. i was just saying that giving the first link on google doesn't really help and that's what you guys do the majority of the time.
asked by mysterychicken 
science
What isthe missing word?The Heart has some  tissue in it.
asked by tiff 
9th grade
ineed help! why did robert hooke's cork cells appear to be empty?
asked by melphie 
MATH
WHAT ARE THE BEST WAYS TO STUDY FOR MATH TEST...
asked by ERICA 
com220
Finding Evaluating and Utilizing Credible Information: Bias, Rhetorical Device, and Argumentation: the University Library Interactive Tutorial; the center for Writing Excellence; and Appendix D
asked by Axia 
Science
What are the job demographics of a diagnostic medical sonographer?
asked by Mariz 
Science
What is the salary, top salary, and average annual salary for an diagnostic medical sonographer?
asked by Mariz 
PreCalculus
If: f(x)= radical x g(x)= x^2+1 What is the domain of f o g? I don't really understand how to answer this question.
asked by Crystal 
Science
Does a plant grow under ground or above ground or does the stem support the plant when it first began to sprout?
asked by Deja 
algebra 2
y=4/9x direct variation
asked by save me 
business
explain currency exchange
asked by jay 
math
what's the prime factorization of 293? what's the prime factorization of 525? and factorization of 216?
asked by brandy 
Writing an essay
" If I am a Tomcat animal, What will i do?"
asked by Prisha 
math
Round off 53 to the nearest 10.
asked by Deja 
American History
What did colonist make or create during the shortages of 1777?
asked by Achsah Okeke 
Criminology
What are three crime prevention methods for property crime and three crime prevention methods for enterprise crime? And how successful is each prevention method? Are there statistics and anecdotal to show this evidence?
asked by Bobby 
math
Heather is buying a TShirt for $8. Sales tax is 8 1/4 cents per dollar. How much will Heather pay in sales tax on her purchase?
asked by heather 
religion
tell me bout gods and eves relationship.
asked by blahhh; 
social studies
how do trres give us oxygen and how?
asked by katie 
Math
how do I find the perimeter of a trapezoid
asked by Julie 
Education
I'm to create a hand printed painted to match my skin tone. I'm not sure on what kind of paint to use or where to get it it. I have also to write a one page reflection on creating my skin color and reflect on how this project might relate to students
asked by Will 
Project
I have to do a project on energy efficient ways to run cars. First I have to pick a car and tell about how it runs. I also need statistics to prove my findings. If anyone knows a good web page or pages, please feel free to tell. Thank You.
asked by Jennifer 
English
* Can you send this fax for me? What is the meaning of 'for' in the sentence above? #1 or #2 or another? 1. with the object or purpose of 2.in place of; instead of
asked by John 
English
* Should I finish all this work in an hour? What is the meaning of 'in'? Does it mean 'after' or 'within'?
asked by John 
sparta&athens
how do they compare and contrast?
asked by Anonymous 
math
1 kilometer =
asked by jim 
Introduction to Healthcare
What are two roles of medical staff and two roles of hospital administration that ar consider most important any why?
asked by Nikia walker 
math
factor completely 322t^4
asked by jennifer 
math
factor completely 12x^2 + 52x + 35
asked by jennifer 
math
factor completely Z^2  18Z + 81  25x^2
asked by jennifer 
history/chem
can someone briefly explain what did aristotle and what did plato contribute to chemistry?
asked by kelli 
MATH
Solve 6x^25x+1=0
asked by Anonymous 
MATH
Solve (2s + 5)(s + 1)= 1
asked by Anonymous 
internet security
Where can one go to download free and legal music without a catch? Is there truly such a site?
asked by Diana 
Psychology
How have you used the scientific process (unsystematic observation, building theories, and evaluating propositions) in your life to better understand your personality? Provide an example in your response. What does this question mean? I don't understand
asked by Alex