WorksheetsCCYD Yr 9 Chemistry Rates of Reaction
Total questions: 10
Worksheet time: 5mins
Powders have a
small surface area
large surface area
Catalysts...
Increase the rate without being used up
Increase the activation energy
Cannot be used more than once
Select the correct units of rate
cm2
cm3
cm2 s-1
cm3 s-1
Reaction rate is fastest at...
The start of a reaction
The middle of a reaction
The end of a reaction
The volume of gas produced in a reaction can be measured using a
Ruler
Light Sensor
Gas Syringe
Protractor
Increasing the temperature...
Increases the number of particles in the reaction
Decreases the number of particles in the reaction
Increases kinetic energy of particles
Decreases kinetic energy of particles
What does the apparatus in the diagram measure?
Time taken for X to disappear when a precipitate forms e.g. sodium thiosulphate and hydrochloric acid.
Volume of gas released e.g. carbon dioxide when marble chips react with acid.
Decrease in mass due to loss of gas e.g. carbon dioxide when marble chips react with acid.
Light passing through a solution when a solid precipitate forms e.g. sodium thiosulphate and hydrochloric acid.
Which line on the graph shows a reaction carried out at a HIGHER temperature?
A
B
Which line on the graph shows a reaction carried out at a LOWER concentration?
A
B
Which line on the graph shows a reaction carried out with a POWDER?
A
B
