9. Which statement best describes the nucleus of an aluminum atom?
A) It has a charge of +13 and is surrounded by
a total of 10 electrons.
B) It has a charge of + 13 and is surrounded
by a total of 13 electrons.
C) It has a charge of -13 and is surrounded by
a total of 10 electrons.
SD) It has a charge of -13 and is surrounded by
a total of 13 electrons.

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?