The molarity of a 2 liter aqueous solution that contains 222.2 grams of dissolved calcium chloride (CaCl2), expressed with two significant figures, is M.

If a 60-g object has a volume of 30 cm3, what is its density? 2 g/cm3 0.5 cm3/g 1800 g * cm3 none of the above

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

What element has similar physical and chemical properties as boron.