A student performs a reaction involving a piece of magnesium placed in acid. The mass of gas produced was measured as below: a) What is the independent variable in this

experiment?(1 mark) b) What is the dependent variable in this experiment? c) On graph paper, draw a graph to show these results. ) Draw an .appropriate line of best fit for these(1 mark)d e) Calculate the rate of reaction at 30 seconds. To do this you will need to determine the gradient at this point.(3 marks) e) Calculate the rate of reaction at 30 seconds. To do this you will need to determine the gradient at this point.(3 marks) f) Calculate the average rate of reaction across the first minute?(4 marks) g) Calculate the average rate of reaction across the first two minutes.(2 marks) h) What is the rate of reaction at 160seconds?(1 mark)Roge