Across
- 2. _is blueish and greenish in colour.
- 5. the substances that have the ability to oxidize other substances.
- 6. the reaction in which more reactive metal displaces less reactive.
- 8. we need to balance the number of _ elements while balancing the chemical equation.
Down
- 1. which compound formed by metals and nonmetals.
- 3. substance that takes part in and undergoes change during a reaction.
- 4. what happens when oxygen is added.
- 7. the substances which are formed in a chemical reaction are called.