Of the eight most abundant elements in earths crust, what percentage does the six next most abundant elements of earths crust make up?

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never