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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)?

  • 129
  • 118
  • 136
  • 140