IPC Unit 5
Terms
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- units that make up all matter
- atoms
- element
- all atoms are alike, 90 (20 in labs)
- compound
- combines atoms of two or more elements, ratio always the same
- substance
- matter that can be an element or a compound, "pure"
- mixtures
- not same amounts, 5 types
- heterogeneous
- easily distinguished, separated
- homogenous
- uniformly
- solution
- homogenous, won't settle
- colloid
- heterogenous, never settles
- suspension
- heterogenous, settles
- solution2
-
same composition, density, color, taste, homogenous
3 phases: solid, liquid, gas - solute
- being dissolved
- solvent
- dissolving
- alloys
- solutions made by melting the metal solute and solvent together
- dissolving
- occurs at surface, stir,temp,sufacearea
- gases
- affected by pressure, temperature(opposite of solids-decrease)
- water
- polar, hydrogen bond(stronger), crystalline ice
- like dissolves like
- why water can't dissove some substances
- soap
- polar (COOH) + nonpolar (?)
- vitamins
-
polar(water soluble):b,c
nonpolar(fat soluble):a,d,e,k - solubility
- max amount of solute that can be dissolved in given amount of solvent at given T
- concentration vs. dilute
- lots of solute vs. lots of solvent
- electrolytes
- compounds that produce solutions of ions that conduct electricity in water, can be strong or weak
- ionization
- process of froming ions
- dissassociation
- ionic solid separates into positive and negative
- solute affects
- freexing point and boiling point
- Tyndall effect
- scatter light beam through solid