The Rate And Extent Of Chemical Changes

Question 1

On a graph for a rate of reaction, why does the line become less steep

Answer 1

• the reactants are being used up

Question 2

Explain collision theory

Answer 2

• when particles collide with enough energy, they form a reaction
• this energy required is called activation energy
• when particles collide more frequently, with more energy
• it causes an increase in reactions

Question 3

What can increase rate of reaction

Answer 3

• temp
• concentration
• pressure
• surface area
• catalyst