The following is a partial chemical equation : ? CO 2 +2H 2 O What can you infer about the reactants in this reaction ?

A. The reactants include 1 carbon dioxide molecule and 2 water molecules
B. The reactants include 2 carbon dioxide molecules and 1 water molecule.
C. The reactants include 1 carbon atom4 oxygen atomsand 4 hydrogen atoms. D. The reactants include 1 carbon atom, 2 oxygen atoms, and 2 water molecules

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

Which is the most concentratic acid