I just need the description and uses for these four elements

dude im so stress with school

i quit schoool

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1. Hydrogen can be used commercial fixation of nitrogen from the air in the Haber ammonia process.

hydrogenation of fats and oils.

methanol production, in hydrodealkylation, hydrocracking,

2. Magnesium is used in products that benefit from being lightweight, such as car seats, luggage, laptops, cameras and power tools. It is also added to molten iron and steel to remove sulfur. As magnesium ignites easily in air and burns with a bright light, it's used in flares, fireworks and sparklers

3. Sulfur Elemental sulfur is used in black gunpowder , matches, and fireworks; in the vulcanization of rubber; as a fungicide, insecticide, and fumigant; in the manufacture of phosphate fertilizers; and in the treatment of certain skin diseases. The principal use of sulfur, however, is in the preparation of its compounds.

4. Chlorine Chlorine is commonly used as an antiseptic and is used to make drinking water safe and to treat swimming pools. Large amounts of chlorine are used in many industrial processes, such as in the production of paper products, plastics, dyes, textiles, medicines, antiseptics, insecticides, solvents and paints.

Explanation:

u i forgot the answer?

answerleaving cheese out to get moldy;