Convert 9989g/ml to units kg/m^3

Based on the position vs. time graph which velocity vs. time graph would correspond to the data

What is the relation between concentration of reactants and the rate of chemical reaction?

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?