Question

An element reacts with oxygen to give a compound with a high melting point. This compound is also

soluble in water. Name the element.​

Answer 1

The element is Calcium I guess.

Step-by-step explanation:

Cause calcium oxide has high melting point and is soluble in water.

Answer 2

Thus, we can say that the element is calcium. This can be clearly understood as ionic compounds have high melting and boiling points in general such as calcium oxide.