chem angles

Question 1

linear

Answer 1

180

Question 2

trigonal planar

Answer 2

120

Question 3

bent

Answer 3

120 or 109.5

Question 4

tetrahedral

Answer 4

109.5

Question 5

trigonal pyramidal

Answer 5

109.5

Question 6

Which elements can have 2 electrons in a Lewis structure?

Answer 6

H

Question 7

Which elements can have 6 or 8 electrons in a Lewis structure?

Answer 7

B and Al

Question 8

Which elements can have 8 or 10 electrons in a Lewis structure?

Answer 8

P

Question 9

Which elements can have 10 or 12 electrons in a Lewis structure?

Answer 9

Xe and S

Question 10

Find weight percent

Answer 10

(mass solute/mass solution) 100

Question 11

Find volume percent

Answer 11

(volume solute/volume solution) 100

Question 12

Find molarity

Answer 12

(moles solute/L solution)

Question 13

Find molality

Answer 13

(moles solute/kg solvent)

Question 14

Find dilution

Answer 14

M1V1=M2V2

Question 15

Values of pressure, vol, temp, mol at STP

Answer 15

pressure = 1 atm
vol = 22.4L
temp = 0C or 273 K
mol = 1 mol

Question 16

which side of the periodic table has strongest electronegativity?

Answer 16

helium, top right

Question 17

which side of the periodic table has largest radius?

Answer 17

bottom left

Question 18

covalent bonds

Answer 18

nonmetals

Question 19

ionic bonds

Answer 19

metals and nonmetals

Question 20

P

Answer 20

8 or 10

Question 21

B

Answer 21

6 or 8

Question 22

H

Answer 22

2

Question 23

Al

Answer 23

6 or 8

Question 24

Xe

Answer 24

10 or 12

Question 25

S

Answer 25

10 or 12