Question

1. When baking soda is added to vinegar,
gas is produced.
2. Dissolving sugar in water is a
change.
3. The process of depositing a layer of zinc on iron is called
4. Crystals of pure substances are obtained from their solutions by crystallicador
5. Hydrated iron oxide is called
3​

Answer 1

Answer:

2. chemical

3. galvanization

4. crystallization

Answer 2

Answer:

1.carbon di oxide

2.physical change

3.galvanaization

5,rust