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Author Question: A chemical change results in A) new atoms. B) a physical change. C) new materials. D) a new ... (Read 201 times)

ghost!

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on: Jul 29, 2018
A chemical change results in
 
  A) new atoms.
  B) a physical change.
  C) new materials.
  D) a new phase.

Question 2

A sample of iron weighs more after it rusts because
 
  A) it has expanded into a greater volume.
  B) rust contains twice as many iron atoms.
  C) of the additional oxygen it contains.
  D) Wrong. Iron actually weighs less after it rusts.


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trampas

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

Answer: C

Answer to Question 2

Answer: C


ghost!

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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