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6. HOW IS MORTAR FORMED

  • STONES
  • CEMENT, SAND AND WATER
  • SAND AND GRAVEL

7. What is limestone made out of

  • calcium carbonate
  • calcium bicarbonate
  • calcium sulfate

8. What do electrons do

  • Move around the nucleus
  • disapear
  • Orbit eachother

9. what is formed when limestone reacts with an acid

  • calcium salt, carbon dioxide, water
  • Metal, oxygen, water
  • Calcium salt, hydrogen, carbon dioxide

10. WHAT IS AN ORE

  • A ROCK
  • A ROCK WITH ENOUGH METAL WORTH EXTRACTING
  • AN ELEMENT

11. What charge do neutrons have

  • positive
  • Neutral
  • Negative

12. Where is the nucleus found

  • On the outside shell
  • The middle of the atom
  • On the atoms first shell
  • Inside an electron particle

13. Element in the same group have

  • Discovered in the same year
  • The same number of electrons in the outer shell
  • the same mass

14. Which element has the electron structure 2,8,8

  • Argon
  • sulfur
  • oxygen
  • nitrogen

15. WHICH SIDE OF ELECTROLYSIS IS POSITIVE

  • ANODE
  • CATHODE
  • WATER

16. OXIDATION IS..

  • LOSS OF OXYGEN
  • GAIN OF OXIDATION

17. HOW IS CEMENT FORMED

  • LIMESTONE AND POWDERED CLAY
  • SAND AND GRAVEL
  • AGGREGATE

18. What is the symbol for Magnesium

  • Mg
  • Mng
  • M
  • Mn

19. What charge do protons have

  • neutral
  • positive
  • negative

20. Electrons always occupy...

  • Shells
  • The nucleus