Across
- 6. A Characteristic that can be observed as it changes to a different type of matter
- 8. the energy released when atoms form bonds.
- 10. the amount of matter in an object
- 12. happens when substances react with one and other changing It to a new substance
- 15. more energy is required to break the bonds of the reactants than isreleased when products form.
- 17. more energy is released when the products form than is required tobreak the bonds in the reactants.
- 18. a substance produced by a chemical reaction.
Down
- 1. a process in which atoms of one or more substances rearrange to form one or more new substances.
- 2. States the total moss of the reactants before a chemical ration
- 3. the amount of space a substance takes up
- 4. law that states that energy is always transferring, but energy is notcreated or destroyed.
- 5. a starting substance in a chemical reaction.
- 7. change of materials into another, new materials with different properties and one or more than one new substances are formed.
- 9. A characteristic of matter that can be measured without change of identity
- 11. a number placed in front of an element symbol or chemical formulain an equation.
- 13. Happens when substances react with oxidizing agents, changing to a new substance
- 14. the ability of a type of matter to burn easily
- 16. the mass per unit volume of a substance