Gen Chem

Question 1

Pauli Exclusion

Answer 1

No two electrons can have identical exact quantum numbers

Question 2

What are all the VSEPR shapes for 6 electron domains

Answer 2

0 LP is octahedral, 1 LP is square pyramid, 2 LP is square planar, 3 LP is T-shape, 4 LP is linear

Question 3

Hund’s rule

Answer 3

Degenerate orbitals each get an electron before pairing

Each orbital gets an electron before it can double up

Question 4

Aufbau principle

Answer 4

electrons fill lowest energy levels first

Question 5

Why is aluminum and exception to the octet rule?

Answer 5

Because it can only form 6 domains

Question 6

How do you calculate formal charge?

Answer 6

Valence - dots - sticks

Question 7

What reacts violently with water

Answer 7

Metals, more violent as you go down the column

Question 8

Do cations form smaller or larger radii

Answer 8

smaller

Question 9

More compact means _____ surface area meaning _____ boiling point

Answer 9

lesser, lower

Question 10

What affects the vapor pressure of a liquid?

Answer 10

Temperature ONLY

Question 11

Negative ions are _____ smaller/larger

Answer 11

Larger

Question 12

Why are metals so reactive with water?

Answer 12

Because they can easily lose their electrons

Question 13

Phase changes are considered _____ changes

Answer 13

physical

Question 14

Electron configuration for positive ions rule

Answer 14

remove electrons with highest principal quantum numbers first

Question 15

What is the ideal gas law equation using density and how is it derived?

Answer 15

m/v = PM / RT, where we use n as m (mass) / M (molar mass)

Question 16

What is absolute zero?

Answer 16

Lowest temperature possible

Question 18

A good indicator will have a pKa ____ to the pH at the equivalence point

Answer 18

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