CHEM 2 Solutions Quiz PDF

**CHEM 2** **Solutions** - Involves the supply of energy **Endothermic** -- absorbs heat **Exothermic** -- releases heat **Mixture** - Two or more substances that do not combine chemically - Combined physically **Compound** - Chemically combined - Has a fixed proportion **Soluti...

**CHEM 2** **Solutions** - Involves the supply of energy **Endothermic** -- absorbs heat **Exothermic** -- releases heat **Mixture** - Two or more substances that do not combine chemically - Combined physically **Compound** - Chemically combined - Has a fixed proportion **Solution** - Same throughout / homogenous - Can be made from solids, liquids, and gas - Gaseoous Solutions \| Air -- Oxygen + Nitrogen - Liquid solutions \| Drinks -- Mix + Water - Solid solutions \| Alloys -- steel, brass, etc. **Solute** - Being dissolved - Lesser component **Solvent** - Dissolver - Greater component **Humidity** -- water dissolved in air **Effervescence** -- escape of gas from solution **Suspension** -- different parts are identifiable **Salt** -- lowers freezing point **Concentration** -- amount of solute dissolved in a solvent at a different temperature **Dilute** -- low concentration of solute dissolved **Concentrated** -- high concentration of solute **Unsaturated** -- less than the maximum concentration of solute dissolved **Saturated** -- maximum concentration of solute dissolved **Supersaturated** -- more dissolved solute than normally possible **Solubility** -- amount of substance that will dissolve in a certain amount of solvent at a given temperature **Higher pressure increases** the amount of gas that can be dissolved **Factors affecting solubility** **Temperature** -- increased temperature dissolves faster **Shaking** -- **Particle size** -- smaller particles dissolve faster Increase in solute **does not** increase the rate of dissolving