rate of reaction

Question 1

what is reaction rate?

Answer 1

The reaction rate or rate of reaction is the speed at which a chemical reaction takes place

Question 2

how do you calculate the average reaction rate?

Answer 2

dividing the change in concentration by the change in time

Question 3

what is the formula for reaction rate?

Answer 3

change in mass of reactant/ time

Question 4

how can reaction rate be increased

Answer 4

changing temp 
adding energy 
changing concertation
changing volume 
changing surface area

Question 5

what is the concertration of a solution

Answer 5

c=n/v
c= concentration of solution in mol L-1
n = moles of substance being dissolved
V = volume of solution in liters

Question 6

what is activation energy

Answer 6

the minimum amount of energy to start a reaction

Question 7

what is does delta H stand for

Answer 7

change in enthalpy

Question 8

what is the change in enthalpy formula

Answer 8

delta H = H(product) - H(reactant)

Question 9

what are catalyzed used for in an reaction?

Answer 9

to make them happen faster but they do not react.