Advanced Chem Final Exam Review - CH 4

What is neither oxidized nor reduced in the reaction below?

• H⁺¹
• S⁻²
• O₂
• O⁻²

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

What is oxidized in the reaction below?

• A𝑙
• O₂
• A𝑙⁺³
• O⁻²

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Does this unbalanced half-reaction show oxidation or reduction?

• oxidation
• reduction
• both oxidation and reduction
• Cannot be determined.

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Is the reaction below a redox reaction? (NOTE: Ag has an oxidation number of +1)

• No
• Yes
• Cannot be determined.

What is oxidized and what is reduced in the equation below?

• C is oxidized and Cr⁺³ is reduced
• O⁻² is oxidized and Cr is reduced
• O⁻² is oxidized and Cr⁺³ is reduced
• Cr⁺³ is oxidized and O⁻² is reduced

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What is oxidized in the reaction below?

• Zn
• N⁺⁵
• N⁺²
• O⁻²

Tags

NGSS.HS-PS1-2

How many electrons and on which side of the reaction are needed to balance this half-reaction?

• 2 electrons, e⁻, on the reactant side
• 2 electrons, e⁻, on the product side
• 4 electrons, e⁻, on the reactant side
• 4 electrons, e⁻, on the product side

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

What is reduced in the reaction below?

• P⁺⁵
• C
• O⁻²
• C⁺²

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-1

Which of the following shows the balanced half-reaction of the one below?

• 4e⁻ + O₂ → 2 O⁻²
• 2e⁻ + O₂ → O⁻²
• O₂ → 2 O⁻² + 4e⁻
• O₂ → O⁻² + 2e⁻

Tags

NGSS.HS-PS1-2

What is reduced in the reaction below?

• Ni⁺²
• Cr
• Ni
• Cr⁺³

Tags

NGSS.HS-PS1-2