Question

find the weight of oxygen required for complete burning of 3.2g of calcium and how many grams of calcium oxide is obtained​

Answer 1

2Ca+O2-->CaO

here

we can clearly see that

40g of cacium required to burn 32g of oxygen

so,3.2 g of cacium required-->32/40 ×3.2

=2.56g of oxygen

Answer 2

GOT IT FINALLY

HOPE IT HELPS YOU.

♡♡