Enter the symbol of the element which would have 36 electrons and -3 charge.

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Find the mass, in grams, of 5.00*10^23 molecules of f2