Question

If a mass of 2.4g magnesium is burnt in air, 4.0g of magnesium oxide is formed.

1) What kind if reaction is this? Explain your answer.

2) What was the mass of oxygen that reacted with magnesium? Explain your answer. ​

Answer 1

Answer:

1. It is a combination reaction. As magnesium combines with oxygen to form magnesium oxide.

2. Mass of oxygen is 1.6g

Because 4 - 2.4 = 1.6g

Sum of reactants = sum of products