How many grams of calcium oxide are needed to produce 308 grams of calcium chloride?

When the volume and number of particles of a gas are constant which of the following is also constant

If the density of water is 1.0 g/cm3, which of these materials would float in water, based on their densities? check all that apply. aluminum cork iron lead wax

What three things determine the shape and size of a puddle when water is poured out onto a surface