Which of the following descriptions of the electron dot structure corresponds to an element in the s block? A. has three unpaired dots
B. has an unpaired dot
C. has two pairs of dots and two unpaired dots
D. has three pairs of dots and an unpaired dot

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

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

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.