15 Regents: Oxidation/Reduction Reactions

What element is being Oxidized?

• N
• H
• O
• S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What element is being Reduced?

• N
• H
• O
• S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What are the coefficients when the equation is balanced for mass and charge?

• 2 + 3 --> 2 + 3 + 4
• 1 + 3 --> 1 + 3 + 2
• 2 + 4 --> 2 + 3 + 2
• 1 + 1 --> 1 + 1 + 1

Tags

NGSS.HS-PS1-7

What element is being Oxidized?

• I
• H
• S
• O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What element is being reduced?

• I
• H
  H
• S
  S
• O
  O

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is oxidation number of H in H₂O?

• 0
• -2
• -1
• +1

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

• -2
• +2
• +6
• +12

Tags

NGSS.HS-PS1-1

What is oxidation number of H in CaH₂?

• +1
• -1
• 0
• +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