Question

How many grams of hydrogen reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide

Answer 1

2 grams.

Step-by-step explanation:

H2 + O2 ---> H2O2

Using molar masses:

2*1 g hydrogen reacts with 2*16 g oxygen.

so 2g H2 reacts with 32 g O2.