Brown Lemay Bursten Ang bilang ni Abugadro
3.1(a) Ano'ng batas o patakarang aalamin ang gagamitin sa proseso ng pagpantay ng mga tumbasang kemikal? Stoichiometria(b)

Sodium Carbonate (Na2CO3)
Ang pagbubuklod kemikal na hydrogen sulfide, H2S ay walang kulay extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is soluble in carbon disulfide. Dissolved in water, it forms a very weak dibasic acid that is sometimes called hydrosulfuric acid. Hydrogen sulfide is flammable; in an excess of air it burns to form sulfur dioxide and water, but if not enough oxygen is present, it forms elemental sulfur and water. Hydrogen sulfide is found naturally in volcanic gases and in some mineral waters. It is often formed during decay of animal matter. It is a part of many unrefined carbonaceous fuels, e.g., natural gas, crude oil, and coal; it is obtained as a byproduct of refining such fuels. It may be made by reacting hydrogen gas with molten sulfur or with sulfur vapors, or by treating a metal sulfide (e.g., ferrous sulfide, FeS) with an acid. Hydrogen sulfide reacts with most metal ions to form sulfides; the sulfides of some metals are insoluble in water and have characteristic colors that help to identify the metal during chemical analysis. Hydrogen sulfide also reacts directly with silver metal, forming a dull, gray-black tarnish of silver sulfide (Ag2S).

Malaki ang ipinasok na hanging sulfur dioxide ang Bulkang Pinatubo sa stratosphere. Itong gas ay sumasanib sa tubig upang buoin ang isang aerosol

Cataclysmic ang kaniyang pagsabog noong Hunyo 15, 1991. where it combines with water to form an aerosol (mist) of sulfuric acid. By reflecting solar radiation, such aerosols can lower the Earth's average surface temperature for extended periods of time by several degrees Fahrenheit. These sulfuric acid aerosols also contribute to the destruction of the ozone layer by altering chlorine and nitrogen compounds in the upper atmosphere.