Question

3. A chemical change is one in which:
(a) only one substance is formed.
(b) one or more different substances are formed.
(c) only two substances are formed.
(d) energy is always liberated or absorbed.​

Answer 1

Answer:

b and d both

Explanation:

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Answer 2

Answer:

b) one or more different substances are formed.

d) energy is always liberated or absorbed

Option b is more preferable