What is the total number of electrons in the valence shell of an atom of aluminum in the ground state?
(1) 8 (3) 3
(2) 2 (4) 10

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Which element is the least metallic between cadmium, silver, zinc, or iron?

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