Worksheet: Ionic Half-Equations

In this worksheet, we will practice writing and combining ionic half-equations for reactions involving oxidants, reductants, and spectator species.

Q1:

Which one of the following half-equations is not a reduction?

  • A L i + e L i +
  • B F e + 3 e F e 3 +
  • C C l + 2 e 2 C l 2
  • D M n O + 4 H + 3 e M n O + 2 H O 4 + 2 2
  • E C r C r + 3 e 3 +

Q2:

Which one of the following half-equations is not an oxidation?

  • A F e F e + 3 e 3 +
  • B C a C a + 2 e 2 +
  • C M n O M n O + e 4 2 4
  • D M n O + 4 H + 3 e M n O + 2 H O 4 + 2 2
  • E C r C r + 3 e 3 +

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