Why does an increase in temperature result in an increase in reaction rate? A. It raises the activation energy

B. It causes the molecules to increase in size

C. It decreases the concentration of reactants

D. It causes an increase in the number of particle collisions

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms