9.83 hydrogen burns in an atmosphere of bromine gas to give hydrogen bromide gas what is the standard gibbs free energy of the reaction

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

  the mississippians were considered to be  horticulturalists, which means they were

What metric units would you use to measure the thickness of a key