Ask Question
8 January, 21:13

When the equation HCl + MnO2 → MnCl2 + H2O + Cl2 is balanced, what is the coefficient for HCl?

A. 1

B. 2

C. 3

D. 4

Reset Selection

+4
Answers (1)
  1. 8 January, 21:42
    0
    HCl + MnO2 → MnCl2 + H2O + Cl2

    In order to balance this, we have to have the same number of electrons of each element on both sides. Here's how to do it:

    4HCl + MnO2 → MnCl2 + 2H2O + Cl2

    You can see that now there are 4 atoms of H on the left, and 4 on the right (left: 4H, right 2H2 = 4H). The number of electrons for Mn is 1 on both sides, and for O is 2 on both sides. For Cl, on the left, there are 4 electrons, and on the right there are 4 as well (left: 4Cl, right: Cl2 + Cl2 = 4Cl).

    So, based on this, the coefficient for HCl is D. 4.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “When the equation HCl + MnO2 → MnCl2 + H2O + Cl2 is balanced, what is the coefficient for HCl? A. 1 B. 2 C. 3 D. 4 Reset Selection ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers