final

Question 1

law of conservation of mass

Answer 1

matter can neither be created or destroyed

Question 2

law of definite proportions

Answer 2

all samples from any source has the same proportions as its other elements

Question 3

law of multiple proportions

Answer 3

ratios

Question 4

metals form

Answer 4

cations

Question 5

nonmetals form

Answer 5

anions

Question 6

metals (2)

Answer 6

good conductors of heat/electricity

tend to lose elections

Question 7

nonmetals (2)

Answer 7

poor conductors of heat/electricity

gain electrons

Question 8

noble gases

Answer 8

unreactive

Question 9

alkali metals

Answer 9

reactive

Question 10

alkaline earth metals

Answer 10

kinda reactive

Question 11

halogens

Answer 11

reactive nonmetal

Question 12

decreasing volume

Answer 12

lower moles of gas

Question 13

increasing volume

Answer 13

higher moles of gas

Question 14

if delta H is negative… (2)

Answer 14

it emits heat

also is a product

Question 15

if delta H is positive … (2)

Answer 15

it absorbs heat

also is a reactant

Question 16

increasing temp when delta H is negative would shift reaction to the …

Answer 16

left

Question 17

decreasing temp when delta H is negative would shift the reaction to the …

Answer 17

right

Question 18

increasing temp when delta H is positive would shift the reaction to the ..

Answer 18

right

Question 19

decreasing temp when delta H is positive would shift the reaction to the …

Answer 19

left

Question 20

if Q > K the reaction will be in …

Answer 20

reverse

Question 21

if Q less than K

Answer 21

forward

Question 22

if Q = 0 the reaction contains only …

Answer 22

reactants

Question 23

if Q = infinity the reaction contains only …

Answer 23

products

Question 24

when K > 1

Answer 24

[products] higher than [reactants]

Question 25

when K less than 1

Answer 25

higher [reactant] than [products]

Question 26

boyles law

Answer 26

p1v1 = p2v2

Question 27

charles law

Answer 27

v1/t1 = v2/t2

Question 28

avagadros law

Answer 28

v1/n1 = v2/n2

Question 29

molar volume at STP

Answer 29

22.4L

Question 30

formula for density of ideal gas

Answer 30

molar mass / molar volume

Question 31

another formula for density of ideal gas

Answer 31

d = PM/RT | M is molar mass

Question 32

lattice energy

Answer 32

the strength of bonds in an ionic compound = the amount of energy required to separate the ionic compound into separate gaseous ions

Question 33

formal charge

Answer 33

valence elections - nonbonding - 1/2 bonding

Question 34

physical properties

Answer 34

smell, taste, color, appearance melting point, boiling point

Question 35

chemical properties

Answer 35

corrosives, flammability, acidity, toxicity

Question 36

physical change

Answer 36

evaporating, boiling, dissolving

Question 37

chemical change

Answer 37

rust, burning

Question 38

multiplying/dividing sig figs

Answer 38

result has the lowest sig figs

Question 39

adding/subtracting sig figs

Answer 39

result has the lowest number after decimal

Question 40

accuracy

Answer 40

how close a measurement is to actual value

Question 41

precision

Answer 41

how close repeated measurements are to each other

Question 42

most gases are polar/nonpolar

Answer 42

nonpolar

Question 43

increasing reactant concentration

Answer 43

Q less than K

Question 44

decreasing reactant concentration

Answer 44

Q > K

Question 45

increasing product concentration

Answer 45

Q > K

Question 46

decreasing product concentration

Answer 46

Q less than K