Redox Half Reactions and Agents

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-PS1-2

Which change is an oxidation?

• FeO to Fe₂O₃

• Fe₂O₃ to FeO

• H₂O₂ to H₂O

• H₂O to H₂

What is the oxidation number of Cr in Cr₂O₇^2- ?

• +14

• +6

• -6

• -14

Tags

NGSS.HS-PS1-2

What is the oxidation number of C in SrCO₃?

• -4

• +2

• -6

• +4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which change does nitrogen undergo oxidation?

• A
• B
• C
• D

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the reduction half-reaction of this equation:

Na + Cl₂ --> NaCl ? (balance!)

What is the reducing agent of this reaction?
3Mg + N₂−−−−> Mg₃N₂

• Mg
• N₂
• Mg₃N₂
• MgN

What is the oxidizing agent of this reaction?
2Al_(s) + 6H⁺_(aq) −−−> 2Al³⁺ _(aq) + 3H_2(g)

• H₂
• Al³⁺
• Al
• H⁺

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which species undergoes a loss of electrons?

Fe_(s) + Cl_2(g)−−−>Fe²⁺_(aq) + Cl^- _(aq)

• Fe

• Fe²⁺

• Cl₂

• Cl^-

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2