I need help with both are they right please read the questions my grades dropped and if I don’t get them up I can’t go out of town Friday please help me:( !

For the reaction, 4 a(g) + 3 b(g) => 2 c(g), the following data were obtained at constant temperature. experiment initial[a],mol/l initial [b],mol/l initial rate,m/min 1 0.200 0.150 5.00 2 0.400 0.150 10.0 3 0.200 0.300 10.0 4 0.400 0.300 20.0 which of the following is the correct rate law for the reaction? 1. rate = k[a]2[b]2 2. rate = k[a][b] 3. rate = k[a]2[b] 4. rate = k[a][b]2

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

In the space, show a correct numerical setup for calculating the number of moles of co2 present in 11 grams of co2