Final Exam Review

Question 1

2nd weakest intermolecular force

Answer 1

dipole-dipole

Question 2

acceptable values for ml

Answer 2

integers from -l to l (the letter l)

Question 3

value for standard molar volume

Answer 3

22.4 L

Question 4

when writing the symbol for an isotope the _____ number goes in the upper left and the _____ number goes in the lower left

Answer 4

mass; atomic

Question 5

when gas molecules disperse throughout a container

Answer 5

diffusion

Question 6

electronegativity directions of increase

Answer 6

up and right

Question 7

What does isoelectronic mean?

Answer 7

having the same number of electrons

Question 8

when the reaction is _____, the reactants side of the energy diagram will be higher than the products side

Answer 8

exothermic

Question 9

when the reaction is _____, the products side of the energy diagram will be higher than the reactants side

Answer 9

endothermic

Question 10

value for ideal gas constant (R)`

Answer 10

0.08206

Question 11

acceptable values for ms

Answer 11

-1/2 or 1/2

Question 12

weakest intermolecular force

Answer 12

London dispersion forces

Question 13

meaning of v/v%

Answer 13

volume (of a liquid solute) in volume (of a solution)

Question 14

the top of the parabola in an energy diagram represents….

Answer 14

activation energy

Question 15

acceptable values for l

Answer 15

integers from 0 to n-1

Question 16

for ionic compounds containing a transition metal, you must modify the chemical name in this way

Answer 16

add a roman numeral in parenthesis to indicate the oxidation state of the transition metal (e.g. copper(II) sulfide)

Question 17

Energy (electrons) = _____ x _____

Answer 17

Planck’s constant * frequency

Question 18

3 examples of physical changes

Answer 18

boiling water, melting gold, freezing mercury

Question 19

fourth quantum number

Answer 19

spin quantum number (ms)

Question 20

the net change in enthalpy = sum of change in enthalpy reactions

Answer 20

Hess’ Law

Question 21

what formula weight is equal to

Answer 21

molar mass

Question 22

ionization energy directions of increase

Answer 22

up and right

Question 23

atomic radius directions of increase

Answer 23

down and left

Question 24

atoms of the same element with different numbers of neutrons

Answer 24

isotopes

Question 25

ionic bonds form between _____ and ______

Answer 25

metals and non-metals

Question 26

number of Calories (kilocalories) in a gram of protein

Answer 26

4

Question 27

covalent bonds form between _____ and _____

Answer 27

non-metals and non-metals (or metalloids)

Question 28

second quantum number

Answer 28

angular momentum quantum number (l)

Question 29

meaning of w/v%

Answer 29

weight (of a solute) in volume (of a solution)

Question 30

____ Calorie(s) = 1 calorie

Answer 30

0.001

Question 31

when gas passes through an opening that is smaller than the mean free path of the particles

Answer 31

effusion

Question 32

number of Calories (kilocalories) in a gram of carbohydrates

Answer 32

4

Question 33

Planck's constant value

Answer 33

6.626 * 10^-34

Question 34

enthalpy change of reaction formula

Answer 34

H = Hf products - Hf reactants

Question 35

order of steps in Scientific Method

Answer 35

Observation, Prediction, Hypothesis, Experimentation, Conclusion

Question 36

third quantum number

Answer 36

magnetic quantum number (ml)

Question 37

suffix added to non-metal in ionic compounds

Answer 37

-ide

Question 38

3 examples of chemical changes

Answer 38

combustion of octane, precipitation of a solid, photosynthesis, etc.

Question 39

number of Calories (kilocalories) in a gram of fat

Answer 39

9

Question 40

reactions that involve a transfer of electrons (change in oxidation number)

Answer 40

oxidation-reduction (redox)

Question 41

what Q (change in heat) equals

Answer 41

= specific heat * mass * change in temperature

Question 42

____ calorie(s) = 1 Calorie

Answer 42

1000

Question 43

Fahrenheit to Celsius conversion

Answer 43

C = (F - 32) / 1.8

Question 44

The ideal gas law applies to _____ temperatures and _____ pressures

Answer 44

high; low

Question 45

reaction where dissolved substances (aqueous) react to form one or more solid compounds

Answer 45

precipitation reaction

Question 46

Avogadro's number

Answer 46

6.022 * 10^23

Question 47

reaction where a proton (H+) is transferred from one species to another

Answer 47

acid-base reaction

Question 48

first quantum number

Answer 48

principal quantum number (n)

Question 49

strongest intermolecular force

Answer 49

hydrogen bonding

Question 50

heat of formation of any individual element

Answer 50

0

Question 51

single bonds are _____er and _____er than double bonds

Answer 51

longer; weaker

Question 52

acceptable values for n

Answer 52

all positive integers

Question 53

units for formula weight

Answer 53

atomic mass units (amu)

Question 54

isotopes have different numbers of _______

Answer 54

neutrons

Question 55

wavelength x frequency = ______

Answer 55

speed of light

Question 56

Celsius to Fahrenheit conversion

Answer 56

F = 1.8C + 32

Question 57

value for speed of light

Answer 57

2.998 * 10^8