Stoichiometry and Limiting Reactants Long Answer

Quiz
•
Chemistry
•
11th Grade
•
Hard
Standards-aligned
Charles Martinez
Used 1+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Nitric acid can be neutralized by any base to form a salt and water, as in the following equation:
Mg(OH)2 + 2 HNO3 → Mg(NO3)2 + 2 H2O
How much magnesium nitrate salt will be formed by the reaction of 250 g magnesium hydroxide with 250 g nitric acid?
294 g
636 g
147 g
318 g
Tags
NGSS.HS-PS1-7
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A propane grill on a backyard patio is left burning for too long and eventually goes out. Which of the following chemicals is the limiting reagent?
oxygen gas
propane
carbon dioxide
water vapor
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
In a small-scale experiment, 29.3 g of silver nitrate in solution is reacted with excess copper wire:
2 AgNO3 + Cu → Cu(NO3)2 + 2 Ag
How much copper (II) nitrate can theoretically be formed in this reaction?
16.2 g
64.7 g
5.5 g
32.3 g
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Tetraphosphorus decoxide combines with water to form phosphoric acid in the following unbalanced chemical equation:
P4O10 + H2O → H3PO4
In order to form 100.0 g phosphoric acid, how much tetraphosphorus decoxide will you need?
289.7 g
138.1 g
262.6 g
72.42 g
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Mercury (I) carbonate will break down when exposed to heat:
Hg2CO3 → Hg2O + CO2
How much Hg2O will be formed when 2.50 g of Hg2CO3 is decomposed?
1.17 g
2.26 g
0.0977 g
4.00 g
Tags
NGSS.HS-PS1-7
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The following chemical equation represents a reaction that we will do in the lab next quarter:
Mg (s) + 2 HCl (aq) → MgCl2 (aq) + H2 (aq)
How many grams of excess reagent will be left over when 6.00 g of HCl reacts with 5.00 g of Mg?
(hint: determine the limiting reagent first )
4 g
1 g
2 g
3 g
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
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