Redox Reaction Oxidation Number

What element is being Oxidized?

• N
• H
• O
• S

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

What element is being Reduced?

• N
• H
• O
• S

Tags

NGSS.HS-PS1-2

What is oxidation number of H in H₂O?

• 0
• -2
• -1
• +1

Tags

NGSS.HS-PS1-1

What is oxidation number of Cr in Cr₂O_7^2-?

• -2
• +2
• +6
• +12

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

What is oxidation number of H in CaH₂?

• +1
• -1
• 0
• +2

Tags

NGSS.HS-PS1-1

What is oxidation number of Fe in FeO ?

• +2
• -2
• 0
• +1

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

What is oxidation number of O in O₂ ?

• 0
• -2
• +1
• +2

What is the oxidation number of N in NO_2^-1?

• -3
• +4
• -2
• +3

Tags

NGSS.HS-PS1-1

If in a reaction, copper is reduced; its number of electrons has:

• Increased
• Decreased
• Remained Constant
• Varies Randomly

Tags

NGSS.HS-PS1-2

If an atom loses electrons during a chemical reaction, the atom was:

• Oxidized
• Reduced
• Neutralized
• Precipitated

Tags

NGSS.HS-PS1-2