Final Review

Question 1

if there is an increase in volume, where does the reaction shift to?

Answer 1

It shifts towards whichever side has more molecules

Question 2

If a reaction is endothermic, where does it shift?

Answer 2

It shifts towards the products

Question 3

If a reaction is exothermic, which way does it shift?

Answer 3

Towards the reactants

Question 4

What is the name of HBrO2?

Answer 4

Bromous acid

Question 5

What is the name of HBrO3?

Answer 5

Bromic acid

Question 6

What in an acid and base reaction is a proton donor or acceptor?

Answer 6

Acid is the donor, base is the acceptor
(conjugate base has one less H, conjugate acid has one more H)

Question 7

What side of a reaction will heat be on if it is endothermic?

Answer 7

The reactants side

Question 8

What is the mass of a Gamma?

Answer 8

it is 0

Question 9

What is the mass of a neutron?

Answer 9

It is 1.008 amu

Question 10

What is the mass of a proton?

Answer 10

1.007 amu

Question 11

What is the mass of an electron?

Answer 11

0.00055 amu

Question 12

What is the mass of Beta?

Answer 12

0.0005 amu

Question 13

What is the mass of Alpha?

Answer 13

4.016

Question 14

What is the formula for bicarbonate?

Answer 14

HCO3^-

Question 15

What does the electronegativity difference have to be for an ionic bond?

Answer 15

Greater than 1.8

Question 16

What does the electronegativity difference have to be for a polar covalent bond?

Answer 16

0.5-1.8

Question 17

What does the electronegativity difference have to be for a nonpolar covalent bond?

Answer 17

less than 0.5

Question 18

What are the elements that can form a hydrogen bond with H?

Answer 18

Nitrogen, oxygen, and fluorine

Question 19

What are ionic bonds made up of?

Answer 19

Metals and nonmetals

Question 20

What are covalent bonds made up of?

Answer 20

Nonmetals and Nonmetals

Question 21

What is the equation to convert Celsius to Fahrenheit?

Answer 21

F= 1.8 (temp C) + 32

Question 22

What is the equation for converting Kelving to Celsius?

Answer 22

C= K-273

Question 23

Does an acid or base have a slippery feel?

Answer 23

Base

Question 24

Can acids or bases conduct electricity?

Answer 24

Both

Question 25

Does a weak acid have a large Ka value or small?

Answer 25

Small

Question 26

What is the value of Kw when the water is neutral?

Answer 26

1.0 x 10^-14 (this means both H and OH- are 1.0 x 10^-7)

Question 27

If the OH^- is 7.88 x 10^-11, is the solution more acidic or basic?

Answer 27

It is more acidic, because OH is very small

Question 28

If the H3O+ is 2.54 x 10^-8, is the solution more acidic or basic?

Answer 28

It is more basic, because H3O is smaller than 10^-7

Question 29

What is the Kw equation?

Answer 29

Kw= [OH^-][H3O^+] or Ka x Kb

Question 30

What is the formula to find pH?

Answer 30

pH= -log(H3O^+)

Question 31

How do sig figs work when finding pH?

Answer 31

You use the amount of sig figs in the question to know how many decimal places there are in the answer. ex. question has 3 sig figs, answer could be 6.708

Question 32

How do you find the pH when given the OH value?

Answer 32

pOH= -log (OH^-) 14-pOH=pH

Question 33

How do you find a H3O value when given the pH?

Answer 33

H3O^+=10^-pH

Question 34

What are the products of an Acid and metal reactions?

Answer 34

a salt and H2 gas

Question 35

What are the products of an acid and carbonate reaction?

Answer 35

Salt, CO2 gas, and H2O

Question 36

What are the products of an acid and base reaction?

Answer 36

salt and H2O

Question 37

What is the H3O^+ of a 0.190M solution of HI?

Answer 37

0.190M, because it is a strong acid and disassociates completely

Question 38

What is the purpose of a buffer?

Answer 38

To try and maintain pH

Question 39

What is the equation to calculate the pH of a buffer solution?

Answer 39

pH=-log(Ka)+log(A^-/HA)

Question 40

What are some weak acids?

Answer 40

HF, HCLO, HNO2, HCN, HC2H3O2

Question 42

What is the equation for Kc (equilibrium constant)?

Answer 42

Products divided by reactants

Question 43

If K is greater than 1, does it favor the products or reactants?

Answer 43

products

Question 44

What phases of matter are going to be included in an equilibrium expression?

Answer 44

Only gas and aqueous