Chemical Reactions

Edit Answers
1234567891011121314151617181920
Across
  1. 1. A group of atoms chemically joined together
  2. 6. The compound formed when iron reacts with oxygen
  3. 9. A method of preventing corrosion, where the metal is coated with zinc metal
  4. 10. Chemical reactions where a metal reacts with oxygen to form a metal oxide
  5. 11. HCl
  6. 13. A type of reaction that proceeds naturally, without energy being continuously added to it
  7. 15. Reacting sodium chloride with silver nitrate will produce __________ _________ and sodium nitrate
  8. 18. Elements such as gold, platinum and mercury do not react with oxygen at all, and are referred to as noble metals
  9. 19. The substances at the beginning of a chemical reaction
  10. 20. When the atoms in a chemical reaction rearrange to form a gas, __________ will be observed
Down
  1. 2. Burning methane with oxygen will produce _________ __________ and water
  2. 3. The term given to the corrosion of iron
  3. 4. When the atoms in a chemical reaction rearrange to form a solid, a _________ may be observed
  4. 5. The name given to the process which causes atoms in reactants to rearrange into new products
  5. 7. A type of reaction that continually requires energy to be added to it
  6. 8. Particles that make up matter
  7. 12. The ________ properties of a metal determines how likely it is to corrode
  8. 14. The substances at the end of a chemical reaction
  9. 16. During a chemical reaction, atoms are never created or ___________
  10. 17. Atoms in substances are held together by chemical bonds that store ___________