Question

how will the compound, MgCl2 and CaO be formed form their elementd​

Answer 1

Answer:

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Explanation:

Magnesium forms a positive ion (cation) with a 2+ charge and chlorine forms a negative ion (anion) with a 1- charge. So here Calcium donates 2 electron to oxygen and forms an ionic bond and forms CaO.

Answer 2

Explanation:

Mg+Cl2=MgCl2

2Ca+O2=2CaO