Chemical change

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Across
  1. 2. – The substance(s) created at the end of a chemical reaction.
  2. 4. – A reaction that happens when something burns.
  3. 5. – How easily something can catch fire.
  4. 9. – How well a substance can dissolve in a liquid.
  5. 14. – A solid that forms in a liquid during a chemical reaction.
  6. 15. – When a complex substance breaks down into simpler ones.
  7. 16. – A substance with a pH less than 7 that tastes sour.
  8. 17. – The starting material(s) in a chemical reaction.
  9. 18. – A reaction that absorbs heat.
Down
  1. 1. – A reaction that releases heat.
  2. 3. – The gradual destruction of materials, often metal, by chemical reactions.
  3. 6. – A substance with a pH greater than 7 that feels slippery.
  4. 7. – When a substance combines with oxygen, often causing rust.
  5. 8. – When two or more simple substances combine to form something more complex.
  6. 10. – A state where the reactants and products in a reaction stay balanced over time.
  7. 11. – When two or more substances change to form something new.
  8. 12. – Something that speeds up a chemical reaction but isn’t used up.
  9. 13. – When an acid and a base cancel each other out.