Worldwide, nearly of the population live without clean drinking water.
one-half
one-third
one-fourth

Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?

Element before carbon on the periodic table

Which compound should undergo substitution of the bromine by phenolate anion? draw the structure of the organic product?