Question

An element reacts with oxygen to produce a melting point compound. This compound is easily soluble in that element.
a. Calcium
b. Carbon
c. Silicon
d. Iron​

Answer 1

Answer:

Calcium

Explanation:

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Answer 2

At room temperature, calcium reacts with oxygen, forming a thin layer of CaO, that protects the metal from further oxidation. Calcium can be ignited and will when burning react with both oxygen and nitrogen forming calcium oxide, CaO, and calcium nitride, Ca3N2.