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Flashcards in Test 3 Deck (20)
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1

Characteristics of Heterogenous Mixtures

Not Uniform
-Properties vary with sample

2

Solute

-substance being dissolved
-Present in the smallest amount

3

Solvent

-substance doing the dissolving
-Present in the largest amount

4

Solvated

when solute is surrounded by solvent

5

Hydrated

When solvent is water the solute is said to be hydrated

6

Hydrophobic

"water loving'
-term used to describe a compound with polar regions or a charge, that forms strong bonds with water

7

Hydropholic

"water hating"
-term used to described a compound with non-polar regions, that form weak bonds with water, and will not dissolve.

8

Electrolytes

substances whose aqueous solutions conduct electricity.
IONS

9

Nonelectrolytes

Substances whose aqueous solutions DO NOT conduct electricity..


MOLECULES

10

Dissolution

the process by which ionic substances dissolve in water

11

Saturated

When the solute is at the solubility limit (chunks of solid in the bottom of the beaker)

12

Miscible

Two substances are soluble in one another in all proportions

13

Spectator Ions

those ions that do not change state (anything that is soluble)

14

Oxidizing agent

Reduction half reaction (is being reduced)
-gains electrons
-oxidation number becomes more negative

15

Reducing Agent

Oxidation Half Reaction (is being oxidized)
-Loses electrons
-oxidation number be comes more positive

16

How to calculate how many electrons were transferred?

multiple the increase/decrease of oxidation number by the number of electrons

17

Good reducing agen

high energy electrons

18

Good oxidizing agent

empty low energy orbitals (no electrons)

19

Passivation

Protection of a reactive metal by the formation of an oxide layer

20

Galvanization

Protecting one metal by sacrificing another more reactive metal