Chemical analysis of a reaction mass resulting from the reaction of 2.000 grams of chromium ( molar mass= 52.0 g/mole) with pure oxygen (molar mass= 16.0 g/mole) yielded a material with a weight of 3.846 grams
which of the following was prepared? cr0, cr203,cr02 or cro3?

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

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

Which proportionality applies to avogadro’s law?