Limestone is consists of A) Al2O3. B) CaCO3. C) Fe2O3. D) ...

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Limestone is consists of
 
  A) Al2O3.
  B) CaCO3.
  C) Fe2O3.
  D) PbS.

Question 2

The oxidation number for l in l2 is
 
  A) -2.
  B) -1.
  C) 0.
  D) +1.

Question 3

Which of the following is a definition of oxidation?
 
  A) Oxidation is the loss of electrons.
  B) Oxidation is the addition of hydrogen.
  C) Oxidation is the loss of oxygen.
  D) Oxidation is the addition of electrons.

[mcni194]

Answer to Question 1

B

Answer to Question 2

C

Answer to Question 3

A

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