Across
- 2. a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
- 3. substance formed by the chemical combination of two or more elements in definite proportions
- 5. substance formed by the chemical combination of two or more elements in definite proportions
- 7. the process by which one or more substances change to produce ono e more different substances
- 8. a chemical bond resulting from the attraction between oppositely charged ions
- 9. a chemical reaction where two elements in different compounds trade places
- 10. a substance produced in a chemical reaction
- 12. a chemical substance that is present at the start of a chemical reaction
- 13. a chemical bond formed when two atoms share electrons
- 15. a reaction in which two or more substances combine to form a new compound
- 16. compound that is composed of two elements
- 17. a reaction in which a single compound breaks down to form two or more simpler substances
Down
- 1. chemical equation with the same number of atoms of each element on both sides of the equation
- 4. matter is not created or destroyed in any chemical or physical change or reaction
- 6. positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable
- 11. a solid that forms from a solution during a chemical reaction
- 14. a chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust