Sofia is comparing the properties of four objects. Each object has a different shape: a square, a thin box, a sphere, and an irregular shape. The masses of all of the objects are the same.
Which object must have the greatest density?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air