II. Tick () the true statements and cross () the false ones. 1. New substances are formed in a physical change. 2. A chemical reaction always involves a chemical change. 3. A chemical change can be easily reversed. 4. A chemical equation describes a chemical reaction. 5. A compound is made up of two or more kinds of atoms.
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Answer:
1. X
2.✓
3.X
4.✓
5.X
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