The salt used to malt snow on a walkway outside a house is calcium chloride and is sold in 20kg bags. How many molecules of calcium chloride are in the bag?

Which sample at stp has the same number of atoms as 18 liters of ne at stp

What is the source of continuous heat and energy that we receive from the sun

Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.