Across
- 5. a reactant that limits the amount of product produced in a chemical reaction
- 8. a formula with the lowest whole-number ratio of elements in a compound
- 11. shows the combination of elements in a molecule or compound
- 13. a group of two or more elements
- 14. when more of a reactant is present than is needed for a reaction
- 17. elements that are usually shiny and conduct electricity well
- 18. the difference between the actual yield and theoretical yield of an experiment, expressed as a percent %
- 19. the mass of one mole of any element or compound
- 21. an ion with an excess positive charge
- 22. elements found along the stairstep that share some properties of both metals and nonmetals
Down
- 1. elements that are usually dull and may be liquids or gas, do not conduct electricity well
- 2. the unit used to measure the mass of individual atoms
- 3. a measure of the ratios of elements in a molecule or compound
- 4. the number of particles in a mole, 6.022X10^23
- 6. a measure of the amount of matter in an object
- 7. an organic group of two or more elements (generally non-metals)
- 9. an ion with an excess negative charge
- 10. the SI unit for the number of particles
- 12. matter is not created nor destroyed, it only changes form
- 15. the amount of product that should be produced by a chemical reaction
- 16. the number of moles of a substance dissolved in 1L of solution (or water)
- 20. the actual amount of a product that is produced by a chemical reaction taking in margin of error