Homework 2 - Balancing Redox Equations - Grade 12 - W3

What is the oxidation half-reaction for the following redox reaction?
                                           Zn + HgO  $\longrightarrow$   ZnO + Hg

• Zn       $\longrightarrow$          Zn2+ + 2e–

•             Hg2+ + 2e–      $\longrightarrow$     Hg

• Zn    +    HgO

• ZnO     +     Hg

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

What is the reduction half-reaction for the following redox reaction?
                                           Zn + HgO  $\longrightarrow$  ZnO + Hg

• Zn        $\longrightarrow$  Zn2+ 2e–

• Hg2+      +      2e–     $\longrightarrow$         Hg

• Zn    +    HgO

• ZnO     +     Hg

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-7

When an element undergoes combustion and loses electrons, the element is

• oxidized

• reduced

• neutralized

• dissolved

Both positive and negative charges arise in redox reactions, but the only particles that move from one reactant to another are

• hydrogen atoms.

• protons

• electrons

• oxygen atoms.

Tags

NGSS.HS-PS3-5

The titration of an acidic solution of FeSO₄ with KMnO₄, which produces Mn²⁺ ions and Fe³⁺ ions, is a(n)

• acid-base reaction.

• redox reaction.

• neutralization reaction.

• disproportionation reaction.