Give balanced equations for the following conversions: 1. Zinc to sodium zincate - using an alkali
2. Acidified water to hydrogen - by electrolysis
3. Water gas to hydrogen - industrially
4. Iron (III) oxide to iron - using hydrogen
5. Nitrogen to a basic gas - using hydrogen

What shape would a molecule with two bound groups and two lone pairs have?

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.

High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?