HW 6.9 Oxidation/reduction reactions

Oxidation is....

• Gain of electrons

• Loss of electrons

• Both the loss and gain of electrons

• None of these

Reduction is....

• Gain of electrons

• Loss of electrons

• Both the loss and gain of electrons

• None of these

Tags

NGSS.HS-PS1-2

During an oxidation-reduction reaction, the number of electrons gained is

• equal to the number of electrons lost

• equal to the number of protons gained

• less than the number of electrons lost

• less than the number of protons gained

Tags

NGSS.HS-PS1-2

The oxidation number of nitrogen in N₂ is

• +1

• 0

• +3

• -3

The oxidation numbers of all the atoms in H₂SO₄ must add up to

• 0

• +5

• +9

• +16

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-PS1-1

NGSS.HS-PS1-2

What is oxidation number of P in K₃PO₄?

• +1
• +5
• -2
• 0

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is oxidation number of Fe in FeO ?

• +2
• -2
• 0
• +1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is oxidation number of O in O₂ ?

• 0
• -2
• +1
• +2