Stoichiometry and Limiting Reactants Long Answer

Stoichiometry and Limiting Reactants Long Answer

11th Grade

15 Qs

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Stoichiometry and Limiting Reactants Long Answer

Stoichiometry and Limiting Reactants Long Answer

Assessment

Quiz

Chemistry

11th Grade

Practice Problem

Medium

NGSS
HS-PS1-7

Standards-aligned

Created by

Charles Martinez

Used 2+ times

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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

Balance the following reaction :
 
CaC₂(s)   +   H₂O(l)   -->   C₂H₂(g)   +   Ca(OH)₂(aq)

1,2,2,2
1,2,1,1
2,1,1,1
2,1,2,1

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