Aluminum chloride can be formed from its elements: (i) 2Al(s)+3Cl2(g)⟶2AlCl3(s) ΔH°= ?

Use the reactions here to determine the ΔH° for reaction (i):

(ii) HCl(g)⟶HCl(aq) ΔH∘(ii)=−74.8kJ

(iii) H2(g)+Cl2(g)⟶2HCl(g) ΔH∘(iii)=−185kJ

(iv) AlCl3(aq)⟶AlCl3(s) ΔH∘(iv)=+323kJ

(v) 2Al(s)+6HCl(aq)⟶2AlCl3(aq)+3H2(g) ΔH∘(v)=−1049kJ

What is the difference between covalent bonds and ionic bonds? covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms. covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms. covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms. covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.