Chemistry Quiz 1

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Across
  1. 2. caused an increase in the amount of oxygen in
  2. 5. lowers the amount of activation energy needed to create a chemical reaction
  3. 6. vertical on periodical table
  4. 8. poisonous gas made from partially burn carbon is called carbon ……
  5. 9. removing oxygen
  6. 10. an element with a low boiling point is a …….. at average temperatures
  7. 11. makes up around 70% of atmosphere
  8. 14. elements with the same number of protons and electrons but different numbers of neutrons
  9. 20. coloured green on universal indicator
  10. 21. if a substance’s a varied boiling or melting point it is .. …
  11. 22. diamonds, graphite and fulerenes are made of this
Down
  1. 1. group 7 always come in twos because they share an electron
  2. 3. group 1 alkaline metals become more ….. as you go down the periodic table
  3. 4. group on inert gases in group 0
  4. 7. gas….. used to measure small quantities of gase given off in a chemical reaction
  5. 12. how you measure the rate of a chemical reaction at between set points
  6. 13. conditions affecting the rate of a reaction are temperature, surface are and …..
  7. 15. atmosphere over time
  8. 16. an an acid + a base => a …… and water
  9. 17. elements from the same period number have the same number of electron …….
  10. 18. horizontal on periodic table
  11. 19. form when two clear solutions form a solid