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Author Question: How many different kinds of elements are in a water molecule? A) one B) two C) three D) four ... (Read 63 times)

waynest

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on: Jul 29, 2018
How many different kinds of elements are in a water molecule?
 
  A) one
  B) two
  C) three
  D) four
  E) none

Question 2

Compared to the energy it takes to separate oxygen and hydrogen from water, the amount of energy released when they recombine is
 
  A) slightly more.
  B) slightly less.
  C) much more.
  D) much less.
  E) the same.


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Bison

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: E


waynest

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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