Across
- 2. A change in matter in which the substances that make up the matter change into other substances with different chemical and physical properties
- 3. More energy is required to break the bonds of the reactants than is released when products form
- 5. Law that states that energy is always transferring, but energy is not created or destroyed
- 6. law states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction
- 11. Occurs when a substance reacts with another substance, changing it to a new substance
- 12. the amount of space a substance takes up
- 13. A substance produced by a chemical reaction
- 14. the mass per unit of volume of a substance
- 15. More energy is released when the products form than is required to break the bonds in the reactants
- 16. a characteristic of matter that can be observed as it changes to a different type of matter
- 17. The amount of matter in an object
- 18. The starting substance in a chemical reaction
Down
- 1. A process in which atoms of one or more substances rearrange to form one or more new substances
- 4. A number placed in front of an element symbol or chemical formula in an equation
- 7. Occurs when substances react with oxidizing agents, changing it to a new substance
- 8. The energy released when atoms form bonds
- 9. The ability of a type of matter to burn easily
- 10. a characteristic of matter that can be observed or measured without changing the identity of the matter