Stoichiometry

6. is the unit of amount of substance in the International System of Units
8. the mole ratio, which relates the amounts in moles of any two substances in a chemical reaction
9. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons
11. a compound, typically a crystalline one, in which water molecules are chemically bound to another compound or an element
12. formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms
14. the mass of a sample of that compound divided by the amount of substance
15. the number of atoms or molecules in one mole of a substance, equal to 6.023 × 10^23

1. a form of matter having constant chemical composition and characteristic
2. an arithmetical multiplier for converting a quantity expressed in one set of units into an equivalent expressed in another
3. a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
4. the relationship between the relative quantities of substances taking part in a reaction or forming a compound, typically a ratio of whole integers.
5. a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction
7. a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products
10. the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations
13. the basic unit of a chemical element