Can someone tell me how to speed up a chemical reaction? ?

Increasing temperature speeds up a reaction because there are more collisions and the collisions have higher energy. Catalysts speed up reactions by increasing the number of successful collisions. Catalysts are not used up in a reaction. Smaller particles have a larger surface area.

it's all four options.

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.