Chemistry C8 Flashcards
What is the mass of a solid measured in?
Grams
What is the volume of a gaseous product measured in?
Cm3
What is the mass of a substance measured with?
A balance
What is the volume of a gas measured with?
A gas syringe
What needs to happen for a chemical reaction to occur?
The reactant particles must collide with each other
What is the minimum amount of energy for a collision to be successful Called?
Activation energy
What is a catalyst?
A chemical that speeds up a reaction without being used up in the process
How does a catalyst speed up a reaction?
They reduce the activation energy
How is the average rate of reaction calculated?
Divide the total volume of gas by the time taken
During a chemical reaction what happens to the rate?
It is fastest at the start and begins to slow down as the reactants get used up
When a solid reacts with a solution and one of the products is a gas how could the the rate of reaction be measured?
A top pan balance
