1. Chemical changes merely ______________________ atoms.

 
2. In a chemical equation, the substances to the left of the arrow are the

 
3. In a chemical equation, the substances to the right of the arrow are the

 
4. In a chemical equation, ___________________ are numbers representing atoms.

 
5. In a chemical equation, ___________________ are numbers representing molecules.

 
6. A chemical equation is "balanced" when

 
7. In a chemical formula, symbols inside parenthesis have ______ subscripts.

 
8. Write the seven steps used to balance chemical equations by inspection.

9. Write the four basic physical state symbols and what each represents.

10. Atoms are neither _________________________ during a chemical reaction.