Across
- 2. What element has a symbol of C
- 3. What compound has a chemical formula of H2O
- 6. a group of two or more atoms that form the smallest identifiable unit
- 8. a system of measurement that uses the meter, liter, and gram as base units of length , capacity, and weight respectively.
- 11. A substance that cannot be broken down into simpler substances by chemical means.
- 12. most noted for his contribution to molecular theory now known as _______'s law
- 15. What element has a symbol of O
- 17. What element has a symbol of H
- 18. the quantity of three-dimensional space occupied by a liquid, solid, or gas.
- 19. Composed of two or more parts, elements, or ingredients
Down
- 1. formula for a compound existing as discrete molecules that gives the total number of atoms of each element in a molecule
- 4. the smallest unit of ordinary matter that forms a chemical element.
- 5. defined as the measurement system used in many countries including the United States using feet, pounds and seconds.
- 7. the formula that shows the ratio of elements present in the compound, but not the actual numbers of atoms found.
- 9. What compound has a chemical formula of CO2
- 10. the identity and relative number of the chemical elements that make up any particular compound.
- 13. standard unit (6.02214076 x 10^23) in chemistry for measuring large quantities of very small entities such as atoms.
- 14. the average mass of atoms of an element, calculated using the relative abundance of isotopes in a naturally-occurring element
- 16. What element has a symbol of N