3. Are all physical changes reversible?
4. Which new substances are formed on burning wood?
5. Are all chemical changes irreversible?
Answers
Answered by
1
Answer:
yes all physical change are reversible.
carbon di oxide is formed.
yes all chemical change are irreversible.
Answered by
0
Yes ,all physical changes are reversible as they are temporary changes.
Carbon dioxide and ash are new substances formed on burning of wood.
Yes, chemical changes are irreversible as they are permanent changes
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