What is the first element that was chemically discovered by the Hanning brand? A. Cobalt B. Nickel C. Hydrogen D. Phosphorus

The correct answer is: A. Cobalt

Cobalt was the first element that was chemically discovered by the Hanning brand. It was discovered in 1735 by Georg Brandt, a Swedish chemist. Brandt was studying the mineral smaltite, which is a cobalt ore. He found that the mineral contained a new element that he named cobalt.

Cobalt is a hard, silvery-white metal that is used in a variety of alloys. It is also used in pigments, batteries, and magnets.

The other options are incorrect because they were not discovered by the Hanning brand.

• Nickel was discovered in 1751 by Axel Fredrik Cronstedt, a Swedish chemist.
• Hydrogen was discovered in 1766 by Henry Cavendish, an English chemist and physicist.
• Phosphorus was discovered in 1669 by Hennig Brand, a German alchemist.