Which of these scenarios involve a reaction that is at equilibrium? a). the reaction is producing more products than reactants b). the reaction is producing more reactants than products c). the amount of products and reactants is changing d). the amount of products and reactants is constant

Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges