Question

Write true or false. Correct the false statements,
New substances that are produced as a result of a reaction are called reactants.
2. When acetic acid is added to sodium bicarbonate, brisk effervescence takes place.
3. Copper(II) sulphide is blue in colour.
4. A chemical reaction in which heat is absorbed is called an exothermic reaction.
5. Chemical reactions that need energy in the form of electricity to take place are called
electrochemical reactions.
6. An enzyme is a substance that acts as a catalyst in living organisms.​

Answer 1

Answer:

1. false

2.true

3.false

4.false

5.true

6.true

Explanation:

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Answer 2

Answer:

1. false

2. false

3. false

4. false

5. true

6. true

.

.

.

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