How many atoms of are contained in a mole of sodium?

Describe in detail the melting point behavior of the 80: 20 benzoic acid-mandelic acid mixture

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume