Across
- 1. the amount of matter in an object.
- 4. a description of a reaction using element symbols and chemical formulas.
- 5. the substances resulting from a chemical reaction.
- 8. a chart of the elements arranged into rows and columns according to their physical and chemical properties.
- 9. law that states that the total mass of the reactants before a chemical reaction is the same as the total mass of the products after the chemical reaction.
Down
- 2. a small particle that is the building block of matter.
- 3. a process in which atoms of one or more substances rearrange to form one or more new substances.
- 6. the starting materials in a chemical reaction.
- 7. a system where matter cannot enter or leave but energy can be exchanged.