Question

Tick (/) the true statements and cross (X) the false ones.
1. New substances are formed in a physical change.
2. A chemical reaction always involves formation of one or more substances.
3. A physical change can be easily reversed.
4. A chemical equation describes a chemical reaction.
5. Carbon dioxide and water are elements.
O0000​

Answer 1

Answer:

false

true

true

true ( not sure)

false