Question

SAY -TRUE or FALSE
(1) alloying prevent rusting
(2) Burring of a substance is a chemical change
(3) stretching a spring is a chemical change
(4) on mixing magnesium oxide with water,a New substance called magnesium chloride is formed
(5) on mixing baking soda with vinegar, hydrogen gas is produced​

Answer 1

Explanation:

1. true
2. false
3. false
4. false
5. true

Answer 2

Answer:

1) True

2) True

3) False

4) False

5) True