Across
- 4. the smallest form of a compound is a molecule. Set up in specific ways known as a ratio
- 6. a particular kind of matter with uniform properties.
- 7. Most atoms in space are hydrogen atoms.
- 8. relating to chemistry, or the interactions of substances as studied in chemistry.
Down
- 1. Some hydrocarbon molecules bonded and formed bigger molecules.
- 2. Everything is made of elements.
- 3. a number or quantity that when multiplied with another produces a given number or expression.
- 5. A group of two or more atoms that are bonded together