Across
- 3. one or two letters used to represent an element
- 4. substance composed of two or more elements chemically combined and in a definite proportion
- 7. number written in front of chemical formula to show how many molecules of that substances
- 8. type of reaction in which two or more substances reacting to form new substances
- 10. combination of symbols and chemical formulas used to describe what happens in a chemical reaction
- 11. periodic table of______?
Down
- 1. A small number to the right of a symbol to show how many atoms are presented in an element
- 2. matter is neither created nor destroyed but can be changed from one form to another
- 5. a change where the characteristics of a substance only change physical
- 6. solid forms as result of chemical reaction(may appear cloudy)
- 9. combination of symbols and numbers that represent the number and types of of elements presented in a compound
- 10. a change where the characteristics of a substance(s) is changed into one or more new substances with different properties then the original