Hema

Most popular questions and responses by Hema
  1. Chemistry

    Calculate ΔHrxn for the following reaction: CaO(s)+CO2(g)→CaCO3(s) Use the following reactions and given ΔH′s. Ca(s)+CO2(g)+12O2(g)→CaCO3(s), ΔH= -812.8 kJ 2Ca(s)+O2(g)→2CaO(s), ΔH= -1269.8 kJ

    asked on October 9, 2016
  2. social studies

    what is mercantilism?

    asked on October 15, 2009
  3. Science

    In a pond a fish at rest sees a bird diving vertically towards water at the rate of 3m/s vertically above the fish If the refractive index of water is 4/3 .What is the actual speed of the bird

    asked on April 23, 2018
  4. chmistry

    preparation of Mercury xylocaine in lab

    asked on March 21, 2017
  5. social studies

    what do the judicial, executive, and legislative branches do with checks and balances?

    asked on October 20, 2009
  6. p.s

    calculate the mass of ice required to lower the temperature of 300 gm of water at 40degree celcius to water at0 degree celcius.

    asked on August 28, 2016
  7. social studies

    What is McCulloch Vs. Maryland?

    asked on October 15, 2009
  8. social studies

    how did the civil liberties amendments enlarge individual rights?

    asked on October 20, 2009
  9. social studies

    how did the constitution differ from the articles of confederation?

    asked on October 15, 2009
  10. Science

    Find the work done when a 25kg weight is lifted to a vertical height of 2.0m from ground ...

    asked on January 24, 2017
  11. English

    What is the main theme of the poem

    asked on June 11, 2016
  12. social studies

    what are checks and balances?

    asked on October 20, 2009
  13. social studies

    what are check and balances?

    asked on October 20, 2009
  14. social studies

    explain the different aspects of life in which women are discriminated in India??

    asked on June 12, 2011
  15. social studies

    How does an individual gain and keep their citizenship?

    asked on October 21, 2009
  16. history

    How does an individual gain and keep their citizenship?

    asked on October 21, 2009
  17. social studies

    Who are the Framers?

    asked on October 19, 2009
  18. social studies

    after the 3/5 compromise could slaves vote?

    asked on October 19, 2009
  19. social studies

    were the southern states counted in the population during the 3/5 compromise because of the population count?

    asked on October 15, 2009
  20. social studies

    what is the three-fifths compromise?

    asked on October 15, 2009
  21. social studies

    why did the southern slaves want to be counted as a part of the population?

    asked on October 15, 2009
  22. social studies

    who was taxed in the three-fifths compromise?

    asked on October 15, 2009
  1. Marry gold english 2

    What does the child in the poem think about his drawing?

    posted on April 12, 2016
  2. Math

    i don't know..

    posted on February 15, 2016
  3. social studies

    what is mercantilism?

    posted on October 15, 2009
  4. Math

    yes. the answer is -6

    posted on October 15, 2009