Ch8

Question 1

solvent

Answer 1

majority liquid

Question 2

solute

Answer 2

minority dissolved in solvent

Question 3

what happens to number of moles of solute during dilution

Answer 3

stays the same but the volume of solvent changes

Question 4

solute-solvent reactions vs solute-solute reactions

Answer 4

solevent solute have better reactions

Question 5

Is H2O polar or nonpolar

Answer 5

polar

Question 6

what must happen for a compound to dissolve in water

Answer 6

it must have dipole moments or ions

Question 7

what do polar solutes dissolve in

Answer 7

polar solvents

Question 8

what do nonpolar solutes dissolve in

Answer 8

nonpolar solvents

Question 9

electrolyte

Answer 9

conducts electricity when dissolved in water

Question 10

ninelectrolyte

Answer 10

doesn’t produce electricity when dissolved in water

Question 11

why do electrolytes produce electricity

Answer 11

because they are composed of ions

Question 12

why do non electrolytes not produce electricity

Answer 12

because they are composed of non ions

Question 13

what forms when an electrolyte is attracted to water

Answer 13

ions are formed in solute

Question 14

do non electrolytes have attraction to water like electrolytes

Answer 14

yes but they don’t form ions

Question 15

strong electrolyte

Answer 15

decomposes into ions with full arrow showing reaction

Question 16

weak electrolyte

Answer 16

doesn’t fully decompose into ions and has half arrow

Question 17

what else should you look into when determining if something is electrolyte

Answer 17

if it is soluble and the arrow of the reaction

Question 18

precip reaction

Answer 18

produces solid

Question 19

what happens if no precipitate forms when two aq solutions mix

Answer 19

no reaction

Question 20

what is double replacement

Answer 20

when two things just switch what they’re bonded with

Question 21

oxidation

Answer 21

loss of electrons

Question 22

oxidation agent

Answer 22

gets reduced causing oxidation

Question 23

reduction

Answer 23

gaining electrons

Question 24

reducing agent

Answer 24

gets oxidized causing reduction

Question 25

oxidation state

Answer 25

is charge of atom if all shared electrons belonged to more electronegative ion

Question 26

can oxidation state be 0.5

Answer 26

yes

Question 27

what is oxidation state of atoms in their natural state

Answer 27

0

Question 28

what are oxidation state monatomic ions (metals)

Answer 28

their ion charge

Question 29

what should sum of oxidation state be in compounds

Answer 29

0

Question 30

what is a solution

Answer 30

a homogenous mixture between two substances

Question 31

dilute solution

Answer 31

small amount of solute relative to solvent

Question 32

concentration solution

Answer 32

large amount of solute relative to solvent

Question 33

unit of concentration

Answer 33

molarity

Question 34

what units is molarity

Answer 34

mol/vol

Question 35

stock solution

Answer 35

very concentrated solution used to make dilutions

Question 36

gas evolution reaction

Answer 36

two aq solution form a gas

Question 37

complete ionic equation

Answer 37

lists charges and ions involved in chem reaction

Question 38

spectator ion

Answer 38

ion that doesn’t really participate in reaction (aq)

Question 39

how do you know gas evo happened

Answer 39

bubbles

Question 40

what do gas evolutions almost always have

Answer 40

intermediate product

Question 41

common compounds in gas evo

Answer 41

H2S H2CO3 H2SO3 NH4OH