Across
- 2. it occurs when two or more compounds combine to form one compound.
- 3. it occurs when saltwater reacts with concrete pillars which contain iron to form Iron chloride
- 4. it occurs when carbonic acid in soft drinks decomposes to give carbon dioxide gas
- 7. it is a type of reaction where part of of one reactant is replaced by part of another reactant
- 8. any liquid or solid water that falls from the atmosphere to the Earth
Down
- 1. it occurs when oxygen combines with a compound to form carbon dioxide and water
- 2. any substance that has a defined composition
- 5. a rearrangement of the atoms or molecules of two or more substances that come into contact with each other, resulting in the formation of one or more new substances
- 6. it is an acid and a base react with each other, generally, the product of this reaction is salt and water
- 9. an example of this is rusting of iron, respiration in humans, and the burning of fuels