Before a chemical reaction, the total mass of two reactants is measured to be 40 grams. After the reactidn, what should be
the total mass of the products?

it takes about 30 days for it to break down

mass and volume are the answers you are looking for

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.