The % water of hydration is 49.3% and the molecular weight of CaCl2 is 111.1 g. Determine the formula.

false

because it does not have the potential to be entirely used up

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.