How many moles of tungsten atoms are in 4.8 x 1025 atoms of tungsten?

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar

In apex! a liquid heated beyond a certain temperature becomes