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Limiting Reagents

Authored by Teresa Justice

Chemistry

10th - 11th Grade

NGSS covered

Used 8+ times

Limiting Reagents
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8 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The limiting reactant

slows the reaction down
is used up first
is the reactant that is left over
controls the speed of the reaction

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3. The reactant that is not completely used up in a chemical reaction is called the __________ .

spectator reagent
limiting reagent
excess reagent
catalyst

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When does a chemical reaction stop?

When the lab is finished
When the excess reactant is used up
When the limiting reactant is used up
Chemical reactions never stop

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Silver nitrate and sodium phosphate are reacted in equal amounts of 200 g each. How many grams of silver phosphate are produced? 
3AgNO3  + Na3(PO4)  --->  Ag3(PO4)  + 3NaNO3

164 g
64 g
146 g
164 moles

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Identify the limiting reagent when 6.00 g HCl combines with 5.00 g Mg to form MgCl2.
a.  Mg +  2HCl --> MgCl2  +  H2   
b.  a.  Mg +  2HCl --> MgCl2  +  H2   

Mg
H2
MgCl2
HCl

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

4NH+ 5O--> 4NO + 6H2O
How many grams of NO are formed if 6.30g of ammonia react with 1.80g of oxygen? 

0.37g
0.045g
1.35g
11.1g

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

P+ 6Cl--> 4PCl
The reaction of 75.0g P4 with excess chlorine gas produces 110g PClin lab. Find the theoretical yield and calculate percent yield for the reaction. 

78%
64%
27%
33%

Tags

NGSS.HS-PS1-7

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