Chemistry terms

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Across
  1. 3. A substance that takes part in and undergoes change during a reaction.
  2. 4. Measures a chemical’s randomness and describes the disorder of molecules based on the number of different arrangements available to them given a system or reaction.
  3. 5. A reaction formed by absorbing heat (the final energy is greater than the starting energy).
  4. 8. An apparatus used to conduct chemical reactions, such as a fermentor or a catalytic converter.
  5. 9. A device or apparatus that facilitates a chemical reaction or transformation of substances.
Down
  1. 1. A substance or mixture for use in chemical analysis or other reactions.
  2. 2. The result of the reaction.
  3. 4. An increase or decrease of energy during a chemical reaction.
  4. 6. A reaction or process that releases / loses heat (the chemical’s final energy is less than its starting energy).
  5. 7. Rapid chemical combination of a substance with oxygen, involving the production of heat and light.