smog - air pollution by a mixture of smoke and fog smogginess portmanteau, portmanteau word, blend - a new word formed by joining two others and combining their meanings; `smog' is a blend of `smoke' and `fog'; `motel' is a portmanteau word made by combining `motor' and `hotel'; `brunch' is a well-known portmanteau
Ammonia or azane is a compound of nitrogen and hydrogen with the formula NH 3. It is a colourless gas with a characteristic pungent smell. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers.
Hydrogen gas, H 2, reacts with nitrogen gas, N 2, to form ammonia gas, NH 3, according to the equation 3H 2 (g) + N 2 (g) â 2NH 3 (g) How many molecules (not moles) of NH 3 are produced from 3.76Ã10 â4 g of H 2?