Across
- 8. the mass in grams of 1 mole of a substance
- 9. a substance that cannot be separated into its different components by physical means
- 10. atom or group of atoms that have a charge other than zero
- 14. the relationship between the relative quantities of substances taking part in a reaction or forming a compound
- 15. the chemical formula of a compound that gives the proportions of the elements present instead of the actual numbers or arrangement
- 16. tells us the mass by mass what percent of each element is present in a compound
Down
- 1. numbers used to change one set of units to another
- 2. the number of units in one mole of any substance; 6.02214076 x 10^23
- 3. the chemical formula of an ionic compound that lists the ions in the lowest ratio that equals a neutral electrical charge
- 4. the smallest unit of ordinary matter that has the properties of a chemical element
- 5. a substance that contains water molecules within its structure
- 6. reaction in which the number of atoms is the same for both the reactants and products
- 7. a representation of a molecule that uses chemical symbols to indicate the types of atoms and number of atoms present
- 11. the quantitative relation between the number of moles of various products and reactants in a chemical reaction
- 12. the standard scientific unit for measuring large quantities of very small entities
- 13. process that involves rearrangement of the molecular or ionic structure of a substance