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Can you tell me why they are ionic or covalent please

Can you tell me why they are ionic or covalent please-example-1
User PamanBeruang
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1 Answer

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Ionic bonding is a type of chemical bond that occurs when the atom of a metal definitively gives up one or more electrons. One of the atoms must be a metal, and the other a nonmetal or hydrogen.

Covalent bonding is a type of chemical bond that occurs between hydrogen atoms, nonmetals and semimetals, in order to remain stable.

NaCl has an ionic bonding because Na is a metal and Cl is a nonmetal.

H2O has covalent bonding because there is an atom of oxygen (nonmetal) bonded with 2 atoms of hydrogen.

Ca(OH)2 is a base formed by the ionic bond of the hydroxyl anion (OH)- with a metal.

CO2 has covalent bonding because there is an atom of carbon (nonmetal) bonded with 2 atoms of oxygen, which is also a nonmetal.

NH3 has a covalent bonding because there is an atom of nitrogen bonded with 3 atoms of hydrogen.

CuCl has an ionic bonding because there is an atom of copper (metal) bonded to an atom of chlorine (nonmetal)

User Sstan
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