4E Sci Chem Chp 12: Oxidation States

What is the oxidation state of an element when it is uncombined?

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• 0

• +1

• no oxidation state

The oxidation state of hydrogen in its compounds is usually ​ (a)   , except in metal hydrides where it is ​ (b)   .

The oxidation state of oxygen in its compounds is usually ​ (c)   , except in peroxides where it is ​ (d)   .

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• -1
• -2
• 0
• +2
• +3
• -3

What is the oxidation state of copper in CuO?

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• +2

• -2

• +2

• -2

• +3

• -3

Tags

NGSS.HS-PS1-2

Match the following substances containing chlorine to the correct oxidation state of chlorine.

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• +4

• -1

• +7

• 0

Nitrogen forms a variety of compounds. List the following compounds in order of increasing oxidation states of nitrogen.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

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• +1

• 0

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

• +2

• -2

• 2+

• 0

• +3

• 0

• -3

• 3-

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

• -2

• +2

• +4

• +6