The melting point of ionic compounds is whereas solid molecular compounds melt 300oc

The melting point of ionic compounds is high whereas solid molecular compounds melt at a temperature less than 300 oC.

Explanation and reason:

Ionic compounds are formed by complte transfer of elctron from one atom to an other atom. So they are held together by electric attractions. These bonds are strong and have 3D crystal lattice strcuture.

So alot of energy is required to break the crystal lattice structure.That's why they have higher melting point.

Now if we discuss, molecular compounds, actually, these are formed by covalent bonds and these molecules are held to together with weak ven der waal forces that can be easily break down by providing less energy.

Conclusion:

Due to different bonding types, ionic compounds have greater/higher melting point as compare to molecular compounds.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).