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WorksheetsChemical Reactions
Total questions: 18
Worksheet time: 10mins
Which factors affect the rate of a reaction?
Temperature
Concentration
Surface Area
Catalyst
All of the Above
Why does a higher concentration increase the rate of reaction?
It increases the amount of reactants
It lowers the activation energy
It increases the energy of particle collisions
It increases the frequency of particle collisions
Why does a higher temperature increase the rate of a reaction?
It increases both the frequency and energy of particle collisions
It only increases the frequency of particle collisions
It only increases the energy of particle collisions
It reduces the activation energy of the reaction
Grinding a effervescent tablet into powder increases the rate of reaction due to increased.....
Concentration
Surface Area
Temperature
Reactants
In an exothermic reaction, heat is ...
Taken In
Given Out
The ______________is required to break the bonds of the reactants.
Carbonic Energy
Activation Energy
Plutonic Energy
Energi Gaib
The minimum amount of energy needed for colliding particles to react is called.......
Chemical Energy
Kinetic Energy
Activation Energy
Potential Energy
A chemical reaction in which energy is absorbed is ______________.
an endothermic reaction
an exothermic reaction
a single replacement reaction
a double replacement reaction
Which of the following would react fastest in sweet tea?
A sugar cube
A sugar cube cut in half
A sugar cube cut in fourths
A sugar cube crushed into powder
If a chemical reaction is exothermic, the temperature would....
Increase
Decrease
Stay the Same
To measure the speed of a reaction you will use one of the following equipment.
Petri Dish
Stop Watch
Stirring Rod
Universal Indicator
A substance that increases speed of chemical reaction without being used up is called.....
Catalyst
Acid
Base
Pressure
You know that a chemical reaction has occurred if....
there are bubbles
there is a color change
there is a temperature change
All of these answers are evidence
