Which statement about Niels Bohr’s atomic model is true? (a)Higher orbits have lower energies.
(b)Each orbit has a specific energy level.
(c)Electrons can exist in any energy level.
(c)Orbits close to the nucleus have no energy.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

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

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?