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weeeeeb [17]
3 years ago
8

I just need the description and uses for these four elements

Chemistry
2 answers:
mixer [17]3 years ago
8 0

dude im so stress with school

i quit schoool

lol

jeka943 years ago
6 0

Answer:

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:

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Answer:

was difficult to place isotopes of elements as they have the same chemical properties but different atomic masses. It was not possible to predict how many elements could be discovered between two heavy elements as the rise in atomic mass is not uniform.

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Explanation

Since this reaction absorbs heat, it is endothermic.

The energy absorbed per mole CO is 2.80 kJ and this reaction is already balanced. q= 2.80 kJ

Hope this helps:)
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