Chem 105

Question 1

Giga

Answer 1

(G) 10^9

Question 2

Mega

Answer 2

(M) 10^6

Question 3

Kilo

Answer 3

(k) 10^3

Question 4

Deci

Answer 4

(d) 10^-1

Question 5

Centi

Answer 5

(c) 10^-2

Question 6

Milli

Answer 6

(m) 10^-3

Question 7

Micro

Answer 7

(m) 10^-6

Question 8

Nano

Answer 8

(n) 10^-9

Question 9

Pico

Answer 9

(p) 10^-12

Question 10

Femto

Answer 10

10^-15

Question 11

JJ Thompson

Answer 11

Cathode rays.
Deflected light rays with magnetic fields
Must be negatively charged particles

Question 12

Millikan

Answer 12

Oildrop
Sprayed oil, charged it, and adjusted magnetic fields to suspend oil droplets
Figured out charge and weight of electrons

Question 13

Rutherford

Answer 13

Goldfoil
Shot alpha wave through gold foil and observed wide angles of deflection
Nucleus is dense and + charged

Question 14

Curie

Answer 14

Radioactivity
Proved existence of + charged particles

Question 15

Einstein

Answer 15

Photoelectric effect

Question 16

Aufbau Principle

Answer 16

Electrons are placed in lowest energy orbitals first

Question 17

Pauli Exclusion Principle

Answer 17

Only 2 electrons can be placed in each orbital

Question 18

Hund’s Rule

Answer 18

Electrons will go into different orbitals before they pair up

Question 19

Intermolecular forces

Answer 19

1. London dispersion forces
2. Dipole induced dipole
3. Dipole-dipole
4. H-bonding
5. Ion- dipole
6. Ion-ion

Question 20

London dispersion forces

Answer 20

Nonpolar molecules
Increase as size increases

Question 21

Dipole-induced

Answer 21

Interaction between polar and nonpolar molecules

Question 22

Dipole-dipole

Answer 22

Interactions between polar molecules
Opposites attract

Question 23

Hydrogen bonding

Answer 23

Strongest dipole-dipole
H bonds with electronegative atoms (N O F)

Question 24

Ion-dipole

Answer 24

Interactions between ions and polar molecules

Question 25

Ion-ion

Answer 25

Interactions between ions Strongest intermolecular forces

Question 26

viscosity

Answer 26

how easy it is for molecules to slide past each other

Question 27

As Intermolecular forces increase, ____ also increases

Answer 27

boiling point, surface tension, viscosity, volatility

Question 28

1st law of Thermodynamics

Answer 28

total energy of the universe is always constant

Question 29

2nd law of Thermodynamics

Answer 29

entropy of universe always increases over time