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Changes Around Us: Physical and Chemical — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceChanges Around Us: Physical and Chemical2 Marks
Question
Write the characteristics of a chemical change.
✓

Answer

Characteristics of a chemical change:
1. Mostly chemical reactions are irreversible.
2. They cause release or absorption of energy.
3. New substances with new properties are formed.
4. The properties of reactants are different from the products.

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