Across
- 3. The basic units of matter and the defining structure of elements.
- 5. Substances formed as a result of a chemical reaction.
- 7. The amount of matter in an object.
- 8. The principle that mass is neither created nor destroyed during a chemical reaction.
- 10. A chemical equation in which the number of atoms for each element is the same on both sides.
- 13. Pure substances consisting of only one type of atom.
- 15. Relating to chemistry or the interactions of substances as studied in chemistry.
- 16. A small number written below and to the right of a chemical symbol in a formula, showing how many atoms of that element are present.
Down
- 1. The process by which one or more substances change to produce new substances.
- 2. True or False: Balancing equations proves the Law of Conservation of Mass.
- 4. Anything that has mass and takes up space.
- 6. Substances that start a chemical reaction.
- 9. A rule that describes a consistent natural phenomenon (in science, such as the Law of Conservation of Mass).
- 11. In a chemical reaction, the mass of the reactants is ___ to the mass of the products.
- 12. A number placed in front of a chemical formula to show how many molecules are involved.
- 14. A symbolic representation of a chemical reaction.
