Chemical Reactions

123456789101112131415161718192021222324252627282930
Across
  1. 6. When an acid and base react quantitatively with each other.
  2. 8. A solution with a large volume of acid
  3. 12. A unit of measuring the acidity of a substance.
  4. 13. An acid that is dilute.
  5. 15. Something that will show whether a substance is acidic or basic.
  6. 16. A ratio of hydrogen and carbon atoms such as alkanes, methane a propane. When burnt in a limited amount of air, carbon monoxide is produced rather than carbon dioxide.
  7. 18. The substances that undergo a change in chemical reactions.
  8. 21. A natural process that converts a refined metal into a more chemically stable form such as oxide, hydroxide, carbonate or sulfide. It is the gradual destruction of materials by chemical and/or electrochemical reaction with their environment.
  9. 22. A common indicator
  10. 24. A type of acid that will not easily give way hydrogen ions
  11. 26. A reaction that emits excess energy in the form of heat, light or electricity. Heat packs, match burning and rusting are examples of this chemical reaction.
  12. 27. dioxide The product of hydrocarbons burning in unlimited air, a compound of carbon and oxygen.
  13. 29. A product of base and acid reactions and acid and metal reactions.
Down
  1. 1. A material that can not be replaced naturally in rate of it being used.
  2. 2. A reaction when things burn, it is a chemical reaction when a flame reacts with oxygen to produce a large amount of heat rapidly.
  3. 3. A natural indicator
  4. 4. An indicator
  5. 5. The result of a chemical reaction.
  6. 7. A type of acid that wants to give away its hydrogen ions.
  7. 9. A substance that is used to create heat.
  8. 10. A substance that gives away hydrogen ions, has a pH lower than 7, conducts electricity when mixed with water, neutralizes bases, has a sour taste and react with many bases.
  9. 11. A reaction that absorbs heat, the reactants are cold. Ice packs and photosynthesis are examples of this chemical reaction.
  10. 14. A base
  11. 17. The process of an electron being removed from a molecule during a chemical reaction.
  12. 19. A slow exothermic reaction where the electrons of a metal is removed from the molecule due to be exposed to water and oxygen.
  13. 20. An acid with a ph of 3
  14. 23. The process in which a material is able to be sustainably replaced and used.
  15. 25. A highly volatile and flammable substance.
  16. 28. A substance that is the chemical opposite of acids, has a slippery soapy feel, tastes bitter, higher pH than 7, when dissolved in water they are called alkanes and neutralize acids.
  17. 30. A natural indicator