WorksheetsCMT674 Chapter 1 Part A
Total questions: 24
Worksheet time: 25mins
How does a catalyst work in speeding up a reaction?
By lowering the activation energy or reaction
by giving them more energy
by making them more available
The minimum amount of energy needed for colliding particles to react is called the
Chemical Energy
Kinetic Energy
Activation Energy
Potential Energy
A substance that increases the rate of a reaction without being used up during the reaction is called a
catalyst
product
reactant
solute
What is the name given to a catalyst in the human body?
Biology
Catalyst
Chemical
Enzyme
Which of the reaction pathway shows the catalysed reaction?
1
2
When a catalyst is added to a reaction the rate of reaction,,,
Increases
Decreases
Does not change
How does a catalyst work in speeding up a reaction?
By lowering the activation energy or reaction
by making them more available
by giving them more energy
A catalyst increases the efficiency of collisions between reactants.
true
false
A catalyst
is used up
is nevr used up
A catalyst be regenerated or used again and again
False
True
A catalyst changes the mechanism of the reaction
True
False
Catalysts may be in the state of ___________.
Solid and liquid only
Liquid and gases only
Solid and gases only
Solid, liquid or gases
