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6. Sodium hydroxide can identify metal ions in ......................?
- Solution
- Salts
- Atoms
- Halogen Compunds
7. What do we use Chlorine for?
- To cook with
- To kill bacteria to make water safer to drink
- To help cure infections
- To kill funghi
8. All atoms of the same element are?
- Identical
- Not alike
- Similar
- Different
9. On the periodic table. What is the specific name for group 8/0?
- Non Metals
- Halogens
- Noble gases
- Alkali Metals
10. What is the relative formula mass of CaSO(4)?