deanne
Popular questions and responses by deanne
Chemistry
A 54.7g sample of aluminum at 95.0°C is dropped into 35.0 g of water at 40.0°C. What is the final temperature of the mixture? (specific heat capacity of aluminum = 0.89 J/g°C; specific heat capacity of water = 4.184 J/g°C)
asked on April 9, 2015 
chemistry
Water is added to 4.267 grams of UF6. The only products are 3.730 grams of a solid containing only uranium, oxygen and fluorine and 0.970 gram of gas. The gas is 95.0% flourine, and the remainder is hydrogen. From data determine the empirical formula of
asked on January 9, 2011 
Algebra
Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Explain how the number of zeros in the standard form of a power of 10 relates to the exponent. Write a rule for the number pattern as well.
asked on February 26, 2013 
Organic Chemisty
How to identify the difference between major and minor products using Markovnikov' rule
asked on November 4, 2014 
Physics
A total of 0.800 kg of water at 20 degrees celsius is places in a 1kw electric kettle. How long a time is needed to raise the temperture of water to 100 degrees celsius?
asked on October 19, 2014 
MATH; PLEASE HELP
Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Write a rule for the number pattern.
asked on February 27, 2013 
Physics
Boxcar A, with a mass of 1500 kg, is travelling at 25 m/s to the east. Boxcar B has a mass of 2000 kg, and is initially at rest. The boxcars collide inelastically and move together after they get stuck. What is their combined velocity?
asked on April 6, 2014 
algebra1/McDougal Littell
I need to know how to work this problem and show my work: 1/5x3x+2=2/5x + 18 First rather the x so: 1/5x3x+2=2/5x+18 1/5x3x2/5x=182 3.2x=16 x=5 x=5 I don't know if this is correct. Please cheak over it. i don't unstand math. how can i?
asked on November 27, 2006 
6th grade Algebra
Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Write a rule for the number pattern.
asked on February 27, 2013 
AlgebraCan you please check this Reiny
Can you check this: x^3y^2/x^2y^4 I think the answer is y^6/x^5 Thanks for explaining the other problem
asked on October 6, 2010 
World History to 1500
My history professor has asked that we present 3 possible research paper topics to her based on mythology or a belief system that may influence present time. I am having trouble with this. I have lots of ideas. .reincarnation, karma, paganism..even
asked on February 7, 2013 
Algebra
We just started this topic and I'm confused about these exponents. Simplify [ 11d^2e^5/33d^4e^2]^2 Could you explain the steps Thanks
asked on October 6, 2010 
prcalculus
change the logarithmic expression to an equivalent expression involving an exponent. log416=x
asked on March 24, 2013

AlgebraCan you please check this Reiny
Thank you so much for your help
posted on October 6, 2010