Chemical Reactions

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Across
  1. 4. The number placed in front of a chemical formula to balance a chemical equation.
  2. 7. A change in matter where a new substance is formed, often involving energy release or absorption.
  3. 8. The substance that is formed in a chemical reaction.
  4. 9. The law stating that matter cannot be created or destroyed in a chemical reaction.
  5. 10. The number of molecules or atoms involved in a reaction, shown in a chemical equation.
Down
  1. 1. A type of reaction in which one element replaces another in a compound.
  2. 2. A reaction where a compound breaks down into simpler substances.
  3. 3. A chemical reaction that releases heat.
  4. 5. A process by which energy is absorbed in a reaction.
  5. 6. A type of reaction where two or more substances combine to form a new compound.
  6. 7. The part of a reaction that is present before the chemical change.