How can the rate of the reaction be increased?

divide the right side by the left side

0.024÷1.2=0.02 for example

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.