Across
- 3. A change that does not produce new substances
- 5. An ionic or covalent _________ forms when atoms rearrange their electrons and stick together
- 8. Used in a chemical equation to separate the reactants from the products
- 11. A chemical ___________ includes the chemical formulas, subscripts and coefficients of the products and the reactants
- 12. The Law of Conservation of __________ states that the total mass of the reactants is equal to the total mass of the products
- 13. Formed when two or more atoms chemically combine together
- 14. The symbols on the periodic table represent one _______
- 16. In a chemical reaction, substances react and form ______ substances
Down
- 1. If there is more than one reactant or product, you will see them separated in the chemical equation with a ____ sign
- 2. When chemical bonds between atoms ________, atoms will rearrange and form new bonds.
- 3. Substances that exist after the reaction
- 4. ______ of a chemical change could be a color change, gas production, precipitate formation, or a change in energy
- 6. A molecule formed when two of the same type of atom bond together (usually nonmetals)
- 7. A chemical _______ is used to represent the compounds in a universal way that is the same around the world in all languages
- 9. Reactants are substances that exist ______ the reaction
- 10. The three states of ________ are solids, liquids and gases
- 15. A change in _____________ could be observed with a temperature change, or light/sound production. Caused when bonds break and reform.