Ch. 1 Sec. 2 Quiz Review

1. a substance that has a fixed composition
3. a mixture that is uniform in composition (looks the same throughout)
5. a change in a substance that does not involve a change in the identity of the substance
10. is a physical change from one state to another
11. a change in which one or more substances are converted into different substances
13. the smallest unit of an element that maintains the chemical identity of that element
15. a mixture that is not uniform in composition (looks different throughout)
16. matter that has a definite volume but an indefinite shape; particles are close together and can slide around each other
17. a blend of two or more kinds of matter, each of which retains its own identity and properties
18. the substances that react in a chemical change
19. a substance that can be broken down into simple stable substances; made from the atoms of two or more elements that are chemically bonded
21. do not depend on the amount of matter present
22. depend on the amount of matter that is present
23. matter that has neither definite volume nor definite shape; particles are free-floating and collide with each other

1. a high-temperature physical state of matter in which atoms lose most of their electrons, particles that make up atoms
2. a characteristic that can be observed or measured without changing the identity of the substance
4. anything that has mass and takes up space
6. relates to a substance’s ability to undergo changes that transform it into different substances
7. the substances that are formed by the chemical change
8. the amount of three-dimensional space an object occupies
9. Energy can be absorbed or released in a change, it is not destroyed or created.
12. a pure substance that cannot be broken down into simpler, stable substances and is made of one type of atom
14. matter that has definite volume and definite shape; particles are packed tightly, can vibrate but not move
20. a measure of the amount of matter