Chemical Reactions

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