Stoichiometry/Equations
Lewis
Memorization
Periodic
Random
100
0.250 mol of elemental bromine, Br2, has a mass of approximately
a. 0.250 g.
b. 8.75 g.
c. 20.0 g.
d. 40.0 g.
e. 79.9 g.
40.0g
100
How many valence electrons are there in the correctly drawn Lewis Structure of SO32-?
26
100
The ion, NH4+, is called
ammonium ion.
100
Which of the following is best described as a covalently bonded molecule?
a) NaF
b) Cs2O
c) CaCl2
d) CS2
e) NaCl
d) CS2
100
The formula weight of calcium bisulfate, Ca(HSO4)2 is about
a. 69 g/mol.
b. 137 g/mol.
c. 201 g/mol.
d. 234 g/mol.
e. 274 g/mol.
d. 234 g/mol.
200
How many atoms are in 4.2 × 10-5 moles NH3 gas?
a. 6.0 × 1023
b. 1.2 × 1023
c. 1.0 × 1020
d. 2.4 × 1024
e. 1.0 × 10-5
c. 1.0 × 1020
200
How many valence electrons are in the Lewis structure of ClO3-?
26
200
Which of the following anions is always soluble in water regardless of its associated cation?
a. NO3-
b. S2-
c. SO42-
d. OH-
e. Cl-
a. NO3-
200
Correct name for SF6
Sulfur Hexafluoride
200
HCl (aq) + 2 Al (s) → 2 AlCl3 (aq) + 3 H2 (g)
What best describes this reaction?
a. It is a neutralization reaction.
b. It is a precipitation reaction.
c. It is an oxidation-reduction reaction.
d. It is a net ionic reaction.
e. It is an example of the combustion of albumin.
c. It is an oxidation-reduction reaction.
300
CH3CH2CH3 + O2 → CO2 + H2O
When correctly balanced, the coefficients of propane and carbon dioxide are respectively
a. 1 and 2
b. 1 and 3
c. 2 and 5/2
d. 2 and 4
e. 2 and 9/2
b. 1 and 3
300
Which molecule is bent with a Lewis structure that includes 2 lone pairs in the central atom? (Select all that apply)
a) SiCl4
b) NH3
c) H2S
d) PO2-
e) SeCl2
c) H2S
e) SeCl2
300
Which of the following is always soluble in water regardless of its associated anion?
a. Sr2+
b. Rb+
c. Ba2+
d. Fe2+
e Fe3+
b. Rb+
300
Correct name for AsF5
Arsenic Pentafluoride
300
Which of the following will react in a neutralization reaction with sodium hydroxide to produce
sodium nitrate?
a. sulfuric acid
b. nitric acid
c. hydrochloric acid
d. sodium sulfate
e. barium nitrate
b. nitric acid
400
2AuCl3 + 3Sn → 3SnCl2 + 2Au
How many moles of tin (II) chloride are produced when 3 moles of gold (III) chloride react with
plenty of tin metal present?
a. 2.0 mol
b. 3.0 mol
c. 4.5 mol
d. 6.0 mol
e. 9.0 mol
c. 4.5 mol
400
Which molecule is trigonal planar with a Lewis structure that includes 9 lone pairs?
a) CH3F
b) NO3-
c) SBr2
d) BI3
e) NCl3
d) BI3
400
The combination of ions most likely to produce a precipitate is
a. Li+ and phosphate ion
b. Pb2+ and nitrate ion
c. copper (II) ion and Cl-
d. ammonium ion and Br-
e. iron (III) and CO32-
iron (III) and CO32-
400
What is the correct molecular compound for dinitrogen trioxide?
N2O3
400
BaCl2 can be formed in a neutralization reaction solely from which pair of compounds?
a. Ba(NO3)3 and Ba(OH)2
b. Ba(NO3)2 and CaCl2
c. Ba(OH)2 and HCl
d. Ba(NO3)2 and HCl
e. NH4Cl and NH4OH
c. Ba(OH)2 and HCl
500
6 HCl (aq) + 2 Al (s) → 2 AlCl3 (aq) + 3 H2 (g)
About how many moles of aluminum chloride would be formed from complete reaction of 54 grams
of aluminum metal?
2.0 Moles
500
Which molecule is bent and has a dipole moment?
a) SiO2
b) BBr3
c) OF2
d) CH3Br
e) PBr3
c) OF2
500
What happens when aqueous solutions of silver nitrate, sodium sulfate, and barium chloride are combined?
BaSO4 and AgCl will both precipitate from the solution
500
The ionic compound formed from Ca2+ and PO43- ions has the formula:
Ca3(PO4)2
500
Which are spectator ions in the redox reaction shown here?
Fe (s) + CuCl2 (aq) → Cu (s) + FeCl2 (aq)
e. Cl- only
600
How many moles of FeCl3 would be produced if 0.8 moles of iron metal and 0.9 moles of chlorine gas
were combined? Hint: Something might be limiting!
2 Fe (s) + 3 Cl2 (g) → 2 FeCl3 (s)
0.6 mol FeCl3
600
How many valence electrons are involved in the correctly-drawn Lewis structure of phosphate ion?
32
600
What are the solubility rules you spoke about in class?
(You won't lose points if you are wrong)
600
Sulfuric acid has the formula:
a. HSO3
b. HSO4
c. H2SO2
d. H2SO3
e. H2SO
H2SO4
600
What are all the VSEPR Shapes and the degrees!
(I have the chart from your slide show)
