Across
- 4. the result of a chemical equation.
- 6. the reaction that takes place when wood is burning.
- 8. a chemical reaction where two or more substances combine to make one new substance.
- 9. a substance on the left side of a chemical equation.
- 12. a substance used to slow down the rate of a chemical reaction.
- 14. the symbol that is used to represent the yield sign.
- 16. the only thing that can be changed when balancing a chemical equation.
- 17. a process where one or more substances change to make one or more new substances.
- 18. a chemical reaction where there is only one reactant but multiple products.
- 19. when this chemical reaction takes place, two or more new substances are formed from two or more different substances in the reactants.
Down
- 1. the reason for balancing an equation is to proves this law.
- 2. the energy that is needed to start a chemical reaction.
- 3. a chemical reaction where on element in the reactants replaces another element in a compound in the products.
- 5. seperates two reactants
- 7. a substance someone would add to speed up a chemical reaction.
- 10. the thing that is released to its surroundings during an exothermic reaction.
- 11. the process of photosynthesis is an example of this type of reaction(energy is absorbed).
- 13. a shorter way of demonstrating a chemical reaction involving reactants and products.
- 15. the small number directly after a chemical symbol used to represent how many atoms of an element there are.