Forces within a system where two objects are attached to each other A) can NOT exist
B) MIGHT cause the system to accelerate
C) can NOT cause the system to accelerate
D) ALWAYS cause the system to accelerate

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