Redox Practice

What is the oxidation number for N for NH₄⁺?

• -3

• +5

• 0

• +1

What is the oxidation number of N in NO₃^-?

• +5

• +3

• -3

• 0

Determine the oxidation number of N in N₂O.

• 0

• +2

• +1

• -1

What is the oxidation state of N in HNO₃?

• -1

• +5

• +3

• 0

What is the oxidation number of Fe in FeO?

• +1
• -1
• +2
• -2

Tags

NGSS.HS-PS1-2

What is the oxidation number of C in HCO₃^- ?

• +4

• +6

• +2

• +1

What is the oxidation number of chlorine in HClO?

• 0

• -1

• +1

• +5

What is the oxidation number of nitrogen in N₂?

• -3

• 0

• +4

• -1

In the reaction
2Ca(s) + O₂(g) --> 2CaO(s), calcium is __________

• Reduced
• Synthesized
• Oxidized
• None of the above

Tags

NGSS.HS-PS1-2

     In the reaction Zn + H₂O --> ZnO₂ + H₂
 which element, if any, is oxidized? 

• Zinc
• Hydrogen
• Oxygen
• None

Tags

NGSS.HS-PS1-2