How can the rate of a reaction be decreased? a. lowering the temperature. b. increasing the amount of reactants. c. having more surface area. d. adding a catalyst.

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

Which governments provide garbage collection services to homes and businesses

Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.