Question

B. Answer the following

1.Magnesium ribbon burns in air and changes to white substance, i.e. magnesium
oxide. When magnesium oxide dissolves in water, what type of change take place?
Give reason in support of your answer. Express the change in the form of equation.

Answer 1

Answer:

Mixing of ash obtained by the burning of magnesium with water is a chemical change. When magnesium is burnt in air, it forms magnesium oxide in the form of white ash. When magnesium oxide dissolves in water, it forms a new substance, magnesium hydroxide. So, it is a chemical change.

Explanation:

hope it helps you and mark me as brainliest plz!!!

Answer 2

Answer:

So, it is a chemical change. As new substance is being formed so its a chemical change. A chemical change happens when one chemical substance is transformed into one or more different substances, such as when magnesium is burnt, new product in form of ash is formed.

plz make me brainliest