Exams

Question 1

the charge on an electron was determined in the ____

Answer 1

Millikan oil drop experiment

Question 2

the smallest and lightest subatomic particle is the ___

Answer 2

electron

Question 3

what is the formula for phosphoric acid?

Answer 3

H3PO4

Question 4

of the following, ___ radiation has the shortest wavelength.
- microwave, x-ray, radio, ultraviolet

Answer 4

X-ray

Question 5

which elements have a ground-state electron configuration different from the predicted one?

Answer 5

ti

Question 6

increasing atomic radii on pt

Answer 6

increase right to left and top to bottom

Question 7

a nonpolar bond will form between __ atoms of ___ electronegativity

Answer 7

identical, equal

Question 8

sigma bond results from the overlap of __ orbitals and the pi bond results from the overlap of ___ orbitals.

Answer 8

sp^2-hybrid, p-atomic

Question 9

redox reaction

Answer 9

oxidation-reduction reaction
- 1 molecule loses e-, 1 molecule gains e-

Question 10

Ca3(PO4)2

Answer 10

calcium phosphate

Question 11

H2CO3

Answer 11

carbonic acid

Question 12

moving an electron from a higher–> lower energy level (n)…

Answer 12

emits photons with lower energy and shorter wavelengths

Question 13

increasing the energy level (n)…

Answer 13

absorbs photons with higher energy and longer wavelength

Question 14

1 atm = ___ torr

Answer 14

760

Question 15

1 atm = ___ mmhg

Answer 15

760

Question 16

to determine the highest concentration of substance A in a compound…

Answer 16

(subscript) x (M)

Question 17

1 Angstrom =

Answer 17

1 x 10^(-10) meters

Question 18

bomb calorimetry: -qrxn =

Answer 18

Ccal x T (delta T)

Question 19

(delta)H units =

Answer 19

kJ/ mol

Question 20

___ is oxidized or reduced

Answer 20

a single element

Question 21

____ is an oxidizing or reducing agent

Answer 21

a molecule/compound

Question 22

oxidized/reducing or oxidizing/reducing agents MUST be…

Answer 22

on the reactants side

Question 23

Zeff =

Answer 23

= Z - S
= (atomic number) - (core e-)

Question 24

1 nanometer = ___ picometers

Answer 24

1000

Question 25

the principle quantum number of the first d sub shell is ____

Answer 25

3 (first one = 3d)

Question 26

Each s subshell holds at most ___ electrons

Answer 26

2

Question 27

Each p subshell holds at most ___ electrons

Answer 27

6

Question 28

Each d subshell holds at most ___ electrons

Answer 28

10

Question 29

Each f subshell holds at most ___ electrons

Answer 29

14

Question 30

moving an electron back to its ground state (n =1)….

Answer 30

emits a photon of light

Question 31

the bond angle of something with 4 electron domains is about…

Answer 31

109.5