Which of these equations is balanced? a. 3 H2SO4 + 2Al → Al2 (SO4) 3 + 3H2 b. 2KCl + Pb (NO3) 2 → KNO3 + PbCl2 a b a and b neither

Question

Chemistry

Blackie

29 July, 22:36

Which of these equations is balanced? a. 3 H2SO4 + 2Al → Al2 (SO4) 3 + 3H2 b. 2KCl + Pb (NO3) 2 → KNO3 + PbCl2 a b a and b neither

+2

Answers (2)

Know the Answer?

Larissa Bernard · Answer 1

The answer is B I just took the test and A is definitely wrong.

Natalya · Answer 2

Only equation A is balanced.

To balance equation B, simply add another molecule of KNO3, so the final equation would be:

2KCl + Pb (NO3) 2 - - - > 2KNO3 + PbCl2