Question

complete the following table. identify the type of bonding in each substance. click on the radio button identifying the substance with the highest melting point.

substance	bonding	highest melting point
ccl₄	select	○
co₂	select	○
bao	select	○

Explanation:

Step1: Analyze bonding in CF₄

CF₄ is a molecular - covalent compound. The atoms of C and F are held together by covalent bonds. The intermolecular forces are London - dispersion forces.

Step2: Analyze bonding in CCl₄

CCl₄ is also a molecular - covalent compound. It has covalent bonds between C and Cl atoms and London - dispersion forces as intermolecular forces.

Step3: Analyze bonding in CO₂

CO₂ is a molecular - covalent compound. It has covalent bonds between C and O atoms and London - dispersion forces (weak intermolecular forces) as the main intermolecular attraction.

Step4: Analyze bonding in BaO

BaO is an ionic compound. It is formed by the transfer of electrons from Ba (a metal) to O (a non - metal), resulting in the formation of Ba²⁺ and O²⁻ ions. The ionic bonds between these ions are much stronger than the intermolecular forces in molecular compounds.

Step5: Compare melting points

Ionic compounds generally have higher melting points than molecular compounds due to the strong electrostatic forces (ionic bonds) between ions compared to the weak intermolecular forces (London - dispersion forces) in molecular compounds.

Answer:

Substance	Bonding	Highest Melting Point
CCl₄	Covalent (Molecular)
CO₂	Covalent (Molecular)
BaO	Ionic	$\checkmark$