Chemical Reactions and Equations

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Across
  1. 5. A representation of a reaction using symbols and formulas.(8,8)
  2. 9. A reaction that releases heat to its surroundings.
  3. 11. Substances present on the left-hand side of a chemical equation.
  4. 12. The process where new substances are formed from old ones.
  5. 14. Prefix meaning “one.”
  6. 16. Compound of nitrogen and oxygen with the formula NO.(8,8)
  7. 19. Slow reaction of a metal with oxygen or water, e.g., rusting.
  8. 20. Reaction between acid and base forming salt and water.
Down
  1. 1. The solid that forms in a precipitation reaction.
  2. 2. Energy often released during an exothermic reaction.
  3. 3. A product that may form and escape as bubbles in a reaction.
  4. 4. Reaction with oxygen that releases heat and light energy.
  5. 6. A reaction written out using the full names of substances.(4,8)
  6. 7. The arrow (→) in a chemical equation means this.
  7. 8. Reaction that produces an insoluble solid from two solutions.
  8. 10. Reaction where a substance gains oxygen or loses electrons.
  9. 13. A visible sign that a chemical reaction has occurred.(6,6)
  10. 15. Substances formed on the right-hand side of a chemical equation.
  11. 17. A reaction that absorbs heat from its surroundings.
  12. 18. Two or more atoms joined together chemically.
  13. 19. A substance made from two or more elements chemically combined.
  14. 21. Energy sometimes given off when a substance burns.