Chem. final study

Question 1

Dalton’s atomic theories

Answer 1

1. Matter is made up of invisible particles- true
2. Particles rearrange into new substances- true
3. Ratios are whole numbers only- true
4. Atoms have no mass- false

Before: matter was continuous

Question 2

Robert Milikan

Answer 2

Used oil drops to find mass and charge of electrons

Question 3

Rutherford

Answer 3

Used gold foil to find out that matter is mostly empty space.

Question 4

Isotope

Answer 4

Elements with same number of protons but different number of neutrons.

Question 5

Special names for Hydrogen 1-4

Answer 5

protium, deuterium, tritium, quadium

Question 6

How many orientations for S orbital

Answer 6

1

Question 7

How many different orientations for P orbital

Answer 7

3

Question 8

How many different orientations for D orbital

Answer 8

5

Question 9

Percent yield

Answer 9

What you got
___________________________

What you should have got

Question 10

4 people credited for periodic table

Answer 10

Newlands- Octets
Meyer- Atomic mass
Mendeleev- Predict some elements
Mosley- Atomic Number

Question 11

Universal gas constant

Answer 11

.08205 atmL
______
molK

					 62.359 torr*L
					              \_\_\_\_\_\_\_
												mol*K

Question 12

Kelvins

Answer 12

Temp. C + 273

Question 13

Universal gas constant for Torrs and mmHg

Answer 13

62.359 Torr (or mmHg)L
___________________
molK

Question 14

Covalent bonds formed (reason)

Answer 14

Fill octet by sharing electrons

Question 15

Ionic bonds formed (reason)

Answer 15

Attracted to each other because of electronegativity, electrons are transferred from one atom to the other due to differences in electronegativity. Stay bonded due to one becoming positively charged and one becoming negatively charged.

Question 16

Metalic bonds

Answer 16

Positive ions in a sea of mobile electrons

Question 17

Alkane

Answer 17

Single bonds between carbons

Question 18

Alkene

Answer 18

Double bonds between carbons

Question 19

Alkyne

Answer 19

Triple bonds between carbons

Question 20

Metalloids

Answer 20

Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium

Question 21

Types of reactions

Answer 21

Synthesis, decomposition, Single replacement, Double replacemnt, Combustion

Question 22

Ideal gas equation

Answer 22

PV=nRT

Question 23

Combined Gas Law

Answer 23

P1V1 P2V2
_____ = _____

T1 T2

Question 24

Ionic Solids are

Answer 24

Electrolytes

Question 25

Molarity

Answer 25

Moles _______ Liters

Question 26

Molality

Answer 26

Moles ______ Kilograms

Question 27

Acid

Answer 27

Proton donor, Lone pair acceptor (Negative)

Question 28

Base

Answer 28

Proton acceptor, Lone pair donor (Positive)

Question 29

How to find pH for strong acid

Answer 29

-log[H+] [H+]=Molarity

Question 30

What are the strong acids

Answer 30

HCl, HNO3, HBr, HI, H2SO4, HClO3, HClO4