Question

Mole ratios for the given chemical equation "2H2 + O2 = 2H2O" are:

A) H2/O2 = 2:1, H2/H2O = 1:2, O2/H2O = 1:2
B) H2/O2 = 2:2, H2/H2O = 1:2, O2/H2O = 1:2
C) H2/O2 = 2:1, H2/H2O = 2:2, O2/H2O = 1:1
D) H2/O2 = 1:2, H2/H2O = 2:1, O2/H2O = 1:2

Answer 1

The mole ratios for the given chemical equation 2H2 + O2 = 2H2O are H2/O2 = 2:1, H2/H2O = 1:2, and O2/H2O = 1:2.

Step-by-step explanation:

The balanced chemical equation is 2H₂ + O₂ → 2H₂O. The mole ratios for this equation are as follows:

1. H2/O2 = 2:1
2. H2/H2O = 1:2
3. O2/H2O = 1:2

These ratios mean that for every 2 moles of hydrogen, there is 1 mole of oxygen, and for every 2 moles of water, there is 1 mole of oxygen. Therefore, the correct option is A) H2/O2 = 2:1, H2/H2O = 1:2, O2/H2O = 1:2.