Chemical Reactions and The Law of Conservation of Mass

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Across
  1. 4. A substance that speeds up a chemical reaction without being consumed.
  2. 5. The process of ensuring that the number of atoms is the same on both sides of a chemical equation.
  3. 6. A reaction that absorbs energy from its surroundings.
  4. 10. A number placed in front of a compound or element in a chemical equation to balance it.
  5. 12. A symbolic representation of a chemical reaction showing the reactants and products.
  6. 13. The new substances formed as a result of a chemical reaction.
  7. 15. This law states that mass is neither created nor destroyed in a chemical reaction.
Down
  1. 1. The substances that undergo a chemical change in a reaction.
  2. 2. A reaction that releases energy, usually in the form of heat.
  3. 3. The minimum energy required for a chemical reaction to occur.
  4. 7. A type of chemical reaction where a single compound breaks down into two or more simpler substances.
  5. 8. The calculation of reactants and products in a chemical reaction.
  6. 9. A group of atoms bonded together.
  7. 11. A reaction where a substance combines with oxygen, often releasing energy in the form of heat and light.
  8. 14. A type of chemical reaction where two or more substances combine to form a new compound.