Question

5 An element reacts with oxygen to give a compound with a high
melting point. This compound it also Solubal in Water . This element
likely to be.
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Answer 1

Explanation:

The element is likely to be. Calcium reacts with oxygen and forms calcium oxide which has a high melting point and is soluble in water too.

Answer 2

Answer:

calcium (Ca)

Explanation:

Ca + H2O ----> CaO + H2

calcium oxide has high melting point and soluble in water