Chem Failed stuff

Question 1

gas density identification

Answer 1

use the 22.4 L/mol conversion

Question 2

capillary action and mercury

Answer 2

pulls the edges down

Question 3

KSp

Answer 3

please remember coefficients, and exponents in calculating the KSP and also watch division

Question 4

bond breaking is what kind of process

Answer 4

ENDOthermic process

Question 5

look at answer choices

Answer 5

to see type of answer

Question 6

pH indicator is used at

Answer 6

equivalence

Question 7

watch units please

Answer 7

ugh

Question 8

how to tell what will be reducing/ ox agent

Answer 8

• reducing agent will GIVE UP electron. please look at oxidation states of each atom for this

Question 9

atomic radius is mostly effected by

Answer 9

effective nuclear charge

Question 10

what is the shortcut for pH

Answer 10

acid= sqrt ka Ha

base= sqrt kb A-

Question 11

conjugate base

Answer 11

H-1

Question 12

percent change

Answer 12

new amount- old amount/ ORiginal

Question 13

oxidation numbers

Answer 13

must add to the total compound charge

Question 14

treat hydrates like

Answer 14

MASS percent

Question 15

when given grams of gas and asked to find volume

Answer 15

use the 22.4 L per mole conversion

Question 16

e cell eqn

Answer 16

E ox- e Red

Question 17

when it says dilute

Answer 17

water is a part of the eon

Question 18

K units for zero order

Answer 18

M/ s

Question 19

condensor is used for

Answer 19

homo mixtures

Question 20

when drawing an MO orbital

Answer 20

there are two spots for every one 2 orbital (1 s has two boxes with 4 e)

there are first 1 s and then 2s

2p has 6 boxes

Question 21

freezing point equation calculators for

Answer 21

depression

Question 22

boiling point equation calculates for

Answer 22

elevation

Question 23

higher the I factor in colligative properties

Answer 23

HIGher boiling point, LOWEr freezing point

Question 24

when given equations

Answer 24

please try to write it out yourself first rather than looking at answer

Question 25

lewis acid

Answer 25

accepts an electron PIAR

Question 26

increasing the temperature

Answer 26

INCREASES RATE not K!!

to determine K, write out the K expression or just think

Question 27

remember that O2 has a -1 charge with

Answer 27

PEROXIDE h2o2

Question 28

parallax error

Answer 28

not looking right at a meniscus

Question 29

crystalization

Answer 29

liquid to solid

Question 30

electrolytic cell grams calculation

Answer 30

amps x seconds x MW

n times faraday

N is number of electrons transferred, not I!

Question 31

transition metal ion formation

Answer 31

REMEMBER THAT ELECTRONS ARE LOST FROM s ORBITAL FIRST

4s0 is not UNCOMMON

Question 32

alpha particle

Answer 32

4

2

Question 33

neutron

Answer 33

1

0

Question 34

proton

Answer 34

1

1

Question 35

beta particle

Answer 35

0

-1

Question 36

positron

Answer 36

0

+1

Question 37

gamma

Answer 37

0

0

Question 38

nuclear decay

Answer 38

remember that coefficients multiply

Question 39

alpha decay

Answer 39

emits alpha

- for large nuclei

Question 40

beta decay

Answer 40

emits beta

for high N/z ratio

Question 41

beta + decay

Answer 41

positron emit

for low N/Z ratio

Question 42

electron capture

Answer 42

add in a beta paarticle

N/z ratio is too low

Question 43

positive delta s

Answer 43

is when entropy increases