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Author Question: Fire was one of the earliest agents that enabled chemical changes. Indicate whether the statement ... (Read 13 times)

Themember4

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on: Aug 27, 2018
Fire was one of the earliest agents that enabled chemical changes.
 
  Indicate whether the statement is true or false

Question 2

A substance which lowers the activation energy of a chemical reaction is called a(n)
 
  A) reducing agent.
  B) catalyst.
  C) oxidizing agent.
  D) carcinogen.


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sultana.d

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Reply #1 on: Aug 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

B


Themember4

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Reply 2 on: Aug 27, 2018
Gracias!

jackie

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Reply 3 on: Yesterday
Excellent

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