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Ch3 CHEM vocab
Term | Definition |
---|---|
acid | any substance that dissolves in water to produce H30+ |
aqueous solution | solution in which water is the solvent |
Avogadro's number | 6.022 x 10^23 |
base | any substance in water to produce OH- |
chemical equation | symbolic representation of a chemical reaction |
concentration | measure of quantities of solute and solvent |
dilution | solvent added to solution, decrease solute concentration |
dissociation reaction | in water, ions come apart |
electrolyte | substance that ionizes in water, conducts electricity |
elemental analysis | experimental measurement of mass percentage of each element in compound |
explosives | rapidly reactive, solid to gas, release lots of energy |
green chemistry | minimize production of waste and pollutants |
insoluble | does not dissolve in water |
molar mass | average mass of 1 mol of any element |
molarity | unit of concentration, number of moles of solute per liter of solution |
mole | quantity of atoms |
molecular equation | chemical equations with molecules |
net ionic equation | spectator ions are omitted |
neutralization | acid and base react to produce water and salt |
nonelectrolyte | dissolves in water, no conductivity |
photochemical reaction | light provides energy to begin reaction |
precipitation reaction | insoluble solid produced in a chemical reaction |
products | formed in chemical equation |
reactants | before the chemical reaction |
salt | formed by reaction of base and acid |
solubility | ability to dissolve in solution |
soluble | solid that dissolves |
solute | add to solvent |
solution | homogeneous mixture of two substances |
solvent | example: water |
spectator ions | ions that do actively participate in reaction |
stoichiometric coefficients | numbers in front of compounds to balance equation |
stoichiometry | study of amounts of reactants and products |
strong electrolyte | ionizes completely in water |
total ionic equation | all ions, including spectator |
weak electrolyte | ionizes partially in water |