Rates of reaction

Question 1

factors (5)

Answer 1

temperature, pressure, surface area, concentration of reactants, catalyst.

Question 2

What is the activation energy

Answer 2

the minimum amount of energy needed to break bonds in reactants to cause collisions

Question 3

Catalysts ??? what do they do?? chemically??

Answer 3

lower activation energy

can be recovered chemically unchanged

Question 4

how is the rate of reaction measured?

5

Answer 4

1. volume of gass evolved
2. mass of reactants/products
3. change in pH
4. formation of precipitate
5. change in color