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This set of MCQs helps you brush up on important chemistry topics and prepare you to dive into skill practice.
What is required for a reaction to occur?
Sufficient energy
Collisions
Collisions with sufficient energy
Nothing
Grinding a seltzer tablet into powder increases the rate of reaction due to increased,
Reactants
Temperature
Concentration
Surface area
This helps to speed up a reaction but does not take part in the chemical reaction.
Coeffiecents
Catalyst
Reactants
Combustion
What does a catalyst do?
Cools the reaction down
Increases the rate of reaction
Increases the concentration of reaction
Stabilizes a reaction
One way of producing copper would be to add which of the following metals to copper sulfate solution?
Carbon
Iron
Platinum
Gold
What would be the salt produced in the reaction of iron and hydrochloric acid?
Chloro iron
Iron hydrochloride
Iron chloride
Iron chlorate
What would you see if you added lithium to water?
An explosion
The metal fizzes and moves around but doesn't melt
The metal fizzes and burns with a purple flame
The metal fizzes, forms a molten ball and moves around the surface of the water
True or False. Inhibitors increase the rate of a reaction.
True
False
