Chemical Reactions and equations

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Across
  1. 3. - A statement that summarizes a vast number of experimental observations and describes how nature behaves under certain conditions.
  2. 5. - A reaction that absorbs heat.
  3. 7. - The loss of electrons during a reaction by a molecule, atom, or ion.
  4. 9. - The number written in front of a reactant or product in a chemical equation, indicating the relative quantity of the substance.
  5. 10. - A substance that brings about a chemical reaction while it remains unchanged itself.
  6. 11. - The amount of product obtained in a chemical reaction.
  7. 12. - A type of chemical reaction in which two or more simple substances combine to form a more complex product.
  8. 14. - A representation of a chemical reaction using symbols of the elements to indicate the amount of substance involved.
  9. 15. - To make sure that the number of atoms of each element is the same on both sides of a chemical equation.
Down
  1. 1. - The speed at which a chemical reaction occurs.
  2. 2. - A substance that forms in a chemical reaction.
  3. 4. - The process in which one or more substances are changed into one or more new substances.
  4. 5. - A reaction that releases heat.
  5. 6. - A substance that takes part in and undergoes change during a reaction.
  6. 8. - A type of chemical reaction in which a single compound breaks down into two or more simpler substances.
  7. 9. - A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  8. 13. - The gain of electrons during a reaction by a molecule, atom, or ion.