WorksheetsUnit 4 Concepts
Total questions: 15
Worksheet time: 14mins
How many moles of H2 can be made from the complete reaction of 4.9 moles of Al?
Given: 2 Al + 6 HCl → 2 AlCl3 + 3 H2
7.4 mol H2
3.3 mol H2
6.5 mol H2
15 mol H2
How many grams of aluminum oxide are produced according to the reaction below given that you start with 13.2 grams of Al and 13.2 grams of O2?
Reaction: 4 Al + 3 O2 → 2Al2O3
24.9 g Al2O3
28.1 g Al2O3
26. 2 g Al2O3
22.7 g Al2O3
A sample of nitrogen gas reacts with an excess of hydrogen gas to give an actual yield of 22.1 g NH3. The theoretical yield is 25.1 g. What is the percent yield for this reaction?
Reaction: N2(g) + 3 H2 (g) → 2 NH3 (g)
88%
114%
56%
76%
2 CaO--> 2 Ca + O2
HSO4- + H2O → H3O+ +SO42-
Identify the Bronsted Lowry Acid in the above reaction.
HSO4-
H2O
HBr is the conjugate acid of
Br1-
Br2
H2Br
none of the above
What is the oxidation number of P in K3PO4?
Which is the correct net ionic equation for this reaction?
3KOH + FeCl3 → 3KCl + Fe(OH)3
3K+ (aq) + 3Cl- (aq) → 3KCl (s)
Fe3+ (aq) + 3OH- (aq) → Fe(OH)3 (s)
Fe3+ (aq) + Cl- (aq) → Fe(OH)3 (s)
3K+ (aq) + 3OH- (aq) + Fe3+ (aq) + 3Cl- (aq) → Fe(OH)3 (s)
The products of a combustion reaction involving C2H4O2 are...
carbon dioxide and water
not enough information is given
hydrogen, carbon, and oxygen
carbon tetrahydride and oxygen
Which of the following is NOT a strong acid? Check ALL that apply.
HF
HCl
HI
