Chemical Changes Gizmo Vocabulary Review

12345678910111213141516
Across
  1. 3. The total mass of the products and reactants in a chemical reaction are ___.
  2. 4. A number representing the number of atoms of an element in one molecule of a substance.
  3. 7. A substance that changes color when in contact with an acid or base.
  4. 10. An endothermic reaction causes the temperature of a system to ___ from its starting temperature.
  5. 13. Synthesis chemical reactions result in formation of a ___ product from multiple reactants.
  6. 14. A process that causes the system to release heat energy to the surroundings.
  7. 16. No ___ are created or destroyed when a chemical reaction occurs.
Down
  1. 1. A substance that results from (comes out of) a chemical reaction.
  2. 2. Chemical changes result in the formation of new ___.
  3. 5. The Law of the Conservation of matter states that the total amount of matter in a ___ system remains constant.
  4. 6. An exothermic reaction causes the temperature of a system to ___ from its starting temperature.
  5. 8. A process that causes the system to absorb heat energy from the surroundings.
  6. 9. A ___ change is a change that affects the shape or phase of a substance but does not produce new substances.
  7. 11. ___ means to pass into solution.
  8. 12. When a chemical change occurs, ___ holding atoms together are broken and new bonds are formed.
  9. 15. A substance that takes part in (goes in to) and is changed by a chemical reaction.