Question

Which of the following is true about a chemical change?
1.
All chemical changes release chemical energy.
All chemical changes result in the formation of a new substance
lii.
All chemical changes are reversible.
iv.
All chemical changes are slow in nature.​

Answer 1

all chemical changes result in the formation of a new subtance

Answer 2

Answer:

your answer is option 2

Explanation:

All chemical changes are reversible

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