Question 456 of 513

Balance: H2 + Cl2 → HCl

  • H2 + Cl2 → HCl
  • H2 + Cl2 → 2HCl
  • 2H2 + Cl2 → HCl
  • H2 + 2Cl2 → 2HCl

Correct Answer: B

Explanation
There are 2 atoms of each element on the left. To match, place 2 before HCl. Balanced: H2 + Cl2 → 2HCl.
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