Question

2 H2 + O2 -> 2 H20

if 32 grams of oxygen reacts with sufficient hydrogen to make 36 grams of water, how many grams of hydrogen will be needed?

Answer 1

8

Step-by-step explanation:

since both hydrogen and water has the same numbers of mole. then as we know that mole = mass/molar mass, 2=mass/2 therefore mass= 4g