Question

100 gram calcium carbonate on heating decomposes into x gram calcium oxide and 44 gram carbon dioxide calculate the mass of calcium oxide formed

Answer 1

Answer:

According to law of conservation,

Mass of products = Mass of reactant

Given,

Calcium carbonate = 100g

Calcium oxide = 44g

Calcium oxide = ?

we know that, calcium carbonate is formed by reacting calcium oxide and carbon dioxide.

Therefore, calcium carbonate is product and Carbon dioxide+ Calcium oxide is reactant.

now,

100 = 44 + X

x = 56 grams of calcium oxide also known as quick lime is formed.