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WorksheetsChemistry-chemical reactions
Total questions: 11
Worksheet time: 6mins
True or false?
A chemical reaction is a chemical change that occurs when two or more substances combine to form a new substance.
True
False
True or false?
A chemical reaction is a chemical change that occurs when two substances combine to form a new substance.
True
False
True or false?
A chemical rate of reaction is the measure of how long the chemical reaction will take place
True
False
True or false?
A chemical rate of reaction is the measurement of the change in concentration of reactants or products in a given period of time.
True
False
True or False?
A chemical rate of reaction is the measurement of the change in the reactants or products in a given period of time.
True
False
True or false?
Concentration is the number of moles per cubic decimetre.
True
False
True or false?
Increasing concentration increases frequency of collision.
False
True
What is refereed to as surface area?
space that a particle exposes for a chemical reaction to occur.
space in a particle that a particle exposes for a chemical reaction to occur
True / False?
Frequent collision increases the rate of reaction.
True
False
True / False?
Frequent collision reduces the rate of reaction.
True
False
True / False?
A catalyst is a substance which can change the rate of a reaction without itself not being chemically changed.
True
False
