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WorksheetsReaction Rates Quiz Review
Total questions: 19
Worksheet time: 33mins
Name
Class
Date
1.
Rate of chemical reaction means
a)
amount of product formed
b)
speed of reaction
c)
concentration of reacting particles
d)
combining reactants with products
2.
Grinding a seltzer tablet into powder increases the rate of reaction due to...
a)
increased concentration of reactants
b)
increased surface area
c)
increased speed of particles.
d)
better orientation of reactants
3.
In a chemical reaction, increasing the temperature of the reactants...
a)
places particles in a better orientation.
b)
makes more catalyst to help the products form more easily.
c)
increases the number of particles in the reaction.
d)
increases the collision speed between the particles.
4.
Which factors increase the rate of a reaction.
a)
increasing temperature
b)
increasing concentration
c)
increasing surface area
d)
All of these
5.
Smaller particle size allows for a _________ surface area to be exposed for the reaction.
a)
larger
b)
smaller
c)
equal
6.
Why does a higher concentration increase the rate of reaction?
a)
it puts reactants in a better orientation.
b)
it lowers the activation energy.
c)
it increases the speed/energy of particle collisions.
d)
it increases the frequency/how often particles collide.
7.
Which of these will NOT speed up the rate of reaction between a strip of magnesium and hydrochloric acid?
a)
twist the strip of magnesium
b)
grind up the strip of magnesium
c)
increase the concentration of the hydrocholoric acid
d)
increase the temperature of the hydrocholoric acid
8.
What is the activation energy?
a)
The energy of the products
b)
The energy of the reactants
c)
The minimum energy needed by the reactants to form the products.
d)
The energy lost in the reaction
9.
A ______________ is a substance that increases the rate of a reaction without being used up during the reaction.
a)
catalyst
b)
product
c)
reactant
d)
solute
10.
Catalysts permit reactions to happen with a __________ activiation energy.
a)
lower
b)
higher
11.
How many liters would you need to make a 3 M solution if you have 6 mol of Sodium Hydroxide?
a)
2
b)
3
c)
4
d)
6
12.
How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?
a)
1074 mol
b)
0.069 mol
c)
1.07 mol
d)
62.7 mol
13.
Which sweet tea would you expect to taste the sweetest?
a)
1M
b)
3M
c)
3.1M
d)
2.5M
14.
True or False? The higher the concentration of a solution the less solutes it has in it.
a)
True
b)
False
15.
How many mL of 10.8M HCl solution are required to get 5 moles of HCl?
a)
2.16 mL
b)
2160 mL
c)
0.463 mL
d)
463 mL
16.
Calculate the molarity of the following solution: 1.0 mole of KCl in 750.0 mL of solution.
a)
0.750 M
b)
99 M
c)
1.3 M
d)
2.0 M
17.
What is the molarity of 3 mole of hydrochloic acid in 3 L of water.
a)
3
b)
1
c)
6
d)
9
18.
Molarity is measured in
a)
moles per kg
b)
mols per L
c)
moles per kJ
d)
moles per mL
19.
How many moles would you need of CO2 to make a 2 M solution in 3 L of water?
a)
1.5
b)
2.0
c)
3.5
d)
6.0
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