Answer :
The correct statement describing the relationship between bond strength and the melting and boiling points of a substance is:
OC. Substances held together by ionic bonding have higher melting and boiling points than those held together by hydrogen bonding.
Here's why:
1. Ionic bonds are stronger than hydrogen bonds. Ionic bonds involve the transfer of electrons between atoms, leading to the formation of positive and negative ions that are held together by strong electrostatic forces. In contrast, hydrogen bonds are weaker and involve attractions between a partially positive hydrogen atom and a partially negative atom (like oxygen or nitrogen).
2. Stronger bonds, like ionic bonds, require more energy to break, resulting in higher melting and boiling points. This means that substances held together by ionic bonding generally have higher melting and boiling points compared to substances held together by weaker hydrogen bonds.
In summary, the strength of the bond between atoms in a substance influences its melting and boiling points. Substances with stronger bonds, such as ionic bonds, will typically have higher melting and boiling points compared to substances with weaker bonds, like hydrogen bonding.
