Oxidizing & Reducing Agent

What is the species that lose electrons in a redox reaction?

• oxidizing agent
• reducing agent
• is reduced
• decreases in oxidation number

What is the species that gain electrons in a redox reaction?

• oxidizing agent
• reducing agent
• is oxidized
• increases in oxidation number

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

• Mg
• N₂
• Mg₃N₂
• MgN

Tags

NGSS.HS-PS1-7

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

• Mg
• N₂
• Mg₃N₂
• MgN

Tags

NGSS.HS-PS1-2

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

• H⁺
• Al³⁺
• Al
• H₂

Tags

NGSS.HS-PS1-2

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

• H₂
• Al³⁺
• Al
• H⁺

What is the oxidizing agent of this reaction?
Cr₂O₇^2-_(aq) + 8H⁺_(aq) + 3H₂S_(aq) −−−> 2Cr³⁺_(aq) + 7H₂O_{(l) +} 3S_(s)

• Cr₂O₇^2-
• H₂S
• Cr³⁺
• S

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the reducing agent of this reaction?
Cr₂O₇^2-_(aq) + 8H⁺_(aq) + 3H₂S_(aq) −−−> 2Cr³⁺_(aq) + 7H₂O_{(l) +} 3S_(s)

• Cr₂O₇^2-
• H₂S
• Cr³⁺
• S

Tags

NGSS.HS-PS1-2

What is the reducing agent of this reaction?
Pt_(s)∣Sn²⁺_(aq), Sn⁴⁺_(aq)∣∣ Cr³⁺_(aq), Cr²⁺_(aq)∣Pt_(s)

• Cr³⁺
• Cr²⁺
• Sn²⁺
• Sn⁴⁺

What is the oxidizing agent of this reaction?
Pt_(s)∣Sn²⁺_(aq), Sn⁴⁺_(aq)∣∣ Cr³⁺_(aq), Cr²⁺_(aq)∣Pt_(s)

• Cr³⁺
• Cr²⁺
• Sn²⁺
• Sn⁴⁺

Tags

NGSS.HS-PS1-2