Choose the reaction that will have the faster rate:
Chemical Reactions Test RETAKE

Quiz
•
English
•
8th Grade
•
Medium
Jennifer Naylor
Used 2+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.75 grams of sodium bicarbonate in 50 mL of vinegar.
18.9 grams of sodium bicarbonate in 50 mL of vinegar.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a combustion reaction?
2H₂ + O₂ → 2H₂O
CH₄ + 2O₂ → CO₂ + 2H₂O
Fe + O₂ → Fe₂O₃
NaCl → Na + Cl₂
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The higher the concentration of the reactants in a reaction will ________________ the rate of reaction
Increase
Decrease
Leave the same
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of Chemical reaction is this? 2Cu + O2 -> 2CuO
Double Replacement
Decomposition
Synthesis
Combustion
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Decreasing the temperature in a chemical reaction will ______ the rate of a chemical reaction.
Decrease
Increase
Have no effect
Double
6.
MATCH QUESTION
30 sec • 1 pt
Match the factor that can affect the rate of chemical reaction to its correct description.
Used to decrease the amount of energy needed to cause a reaction
Temperature
The heat energy involved in a reaction
Concentration
The size of the particles can affect the rate of a reaction
Surface Area
The amount of reactants involved in the reaction
Catalyst
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of a catalyst in a chemical reaction?
It is consumed in the reaction and permanently changes the products.
It increases the amount energy required for the reaction.
It speeds up the reaction without being consumed in the process.
It decreases the temperature of the reaction.
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