What is the rate of reaction?

• How fast a reaction is

• How loud a reaction is

• How big a reaction is

How is this equipment being used to measure the rate of reaction?

• The gas syringe measures how much gas is produced in a certain time

• The reaction mixture will increase in volume in a certain time

How can rate of reaction be measured in reactions?

• Measure mass lost when gas produced.

• Measure color change or formation of a solid.

• Measure volume of gas produced.

• Measure time taken for liquid to disappear.

Look at the graph. At what time does the reaction finish?

• 4 minutes

• 6 minutes

• 5 minutes

• 7 minutes

The steeper the slope is the ... the reaction.

• faster

• slower

The more collisions between particles of reactants there are in a given time ...

• the faster reaction

• the slower reaction

This method can use to collect gas produced ...

• using a gas syringe system

• downwards water displacement

• using digital balance

Identify where the reaction has finished

• A

• B

• C

• D

What are the products when calcium carbonate reacts with hydrochloric acid?

• calcium chloride and hydrogen gas

• calcium chloride and oxygen gas

• calcium chloride, water and carbon dioxide gas

• calcium chloride, water and hydrogen gas

How can you increase the rate of a reaction?

• Decrease the pressure

• Increase the concentration

• Decrease the concentration