Question

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

Answer 1

Answer:

b and d

Explanation:

b and d

Answer 2

Increasing concentration of on or more reactints will increse the rate.

So
adding more oxygen to the reaction

is your answer