KOH+F2→KF+F2O+H2O



Which option shows a correctly balanced chemical equation.

(1 point)
Responses

3KOH+3F2→KF+F2O+2H2O
3KOH+3F2→KF+F2O+2H2O

2KOH+2F2→2KF+F2O+H2O
2 cap k cap o cap h plus 2 cap f sub 2 rightarrow 2 cap k cap f plus cap f sub 2 cap o plus cap h sub 2 cap o

3KOH+F2→3KF+2F2O+H2O
3 cap k cap o cap h plus cap f sub 2 rightarrow 3 cap k cap f plus 2 cap f sub 2 cap o plus cap h sub 2 cap o

2KOH+2F2→KF+F2O+H2O

1 answer

To determine the correct balancing of the chemical equation \( \text{KOH} + \text{F}_2 \rightarrow \text{KF} + \text{F}_2\text{O} + \text{H}_2\text{O} \), we need to analyze each option to ensure the number of each atom is the same on both sides of the equation.

  1. Option 1: \( 3\text{KOH} + 3\text{F}_2 \rightarrow \text{KF} + \text{F}_2\text{O} + 2\text{H}_2\text{O} \)

    • Left side: 3 K, 3 O, 3 H, 6 F
    • Right side: 1 K, 1 F, 1 O, 2 H from water, plus another 1 K and 2 F from \( \text{F}_2\text{O} \) (total 1 K + 3 F from products)
    • Not balanced: No (not equal)
  2. Option 2: \( 2\text{KOH} + 2\text{F}_2 \rightarrow 2\text{KF} + \text{F}_2\text{O} + \text{H}_2\text{O} \)

    • Left side: 2 K, 2 O, 2 H, 4 F
    • Right side: 2 K, 2 O, 2 H, 3 F total (2 from \( \text{KF} \) and 1 from \( \text{F}_2\text{O} \))
    • Not balanced: No (not equal)
  3. Option 3: \( 3\text{KOH} + \text{F}_2 \rightarrow 3\text{KF} + 2\text{F}_2\text{O} + \text{H}_2\text{O} \)

    • Left side: 3 K, 3 O, 3 H, 2 F
    • Right side: 3 K, 3 O, 3 H from products (2 from \( \text{H}_2\text{O} \), 2 O).
    • Not balanced: No (not equal)
  4. Option 4: \( 2\text{KOH} + 2\text{F}_2 \rightarrow \text{KF} + \text{F}_2\text{O} + \text{H}_2\text{O} \)

    • Left side: 2 K, 2 O, 2 H, 4 F
    • Right side: Doesn't match since only one \( \text{KF} \) from right.

Based on the evaluation, the correct balanced equation is not among the provided options. The balanced equation should have balanced coefficients that could contain these substances.

The appropriate balanced version of the reaction is \( 2\text{KOH} + \text{F}_2 \rightarrow 2\text{KF} + \text{F}_2\text{O} + \text{H}_2\text{O} \), which reflects the input of proper coefficients matching both sides' elemental counts.