Derlhitely not a halogen. But if all you knew about me was my atomic mass (not my atomic number or properties),
then you might expect me to be located one element over in
the halogen family. Who am I?

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

The excretory system,need answers for all: )

Describe the forces both attractive and repulsive that occur as two atoms move closer together.