deanne

Popular questions and responses by deanne
  1. Chemistry

    A 54.7-g 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
  2. 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
  3. 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
  4. Organic Chemisty

    How to identify the difference between major and minor products using Markovnikov' rule

    asked on November 4, 2014
  5. 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
  6. 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
  7. 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
  8. algebra1/McDougal Littell

    I need to know how to work this problem and show my work: 1/5x-3x+2=2/5x + 18 First rather the x so: 1/5x-3x+2=2/5x+18 1/5x-3x-2/5x=18-2 -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
  9. 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
  10. Algebra-Can 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
  11. 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
  12. 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
  13. prcalculus

    change the logarithmic expression to an equivalent expression involving an exponent. log416=x

    asked on March 24, 2013
  1. Algebra-Can you please check this Reiny

    Thank you so much for your help

    posted on October 6, 2010