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