Question

use the following information to answer the next question. a list of molecules 1 - ch₃f 2 - nh₂cl 3 - cbr₄ 4 - mgbr₂ 18. match each of the compounds above with the types of bonds or forces present contains only london dispersion forces __________ (first blank) contains only london dispersion and dipole - dipole ________ (second blank) contains london dispersion, dipole - dipole & hydrogen bonding ________ (third blank) contains ionic bonds __________ (fourth blank) (record your four - digit answer in the numerical - response section below.) your answer: □□□□

Explanation:

Step1: Analyze London - Dispersion Forces

London - dispersion forces are present in all molecules. Non - polar molecules have only London - dispersion forces. $CBr_4$ is a non - polar molecule due to its symmetrical tetrahedral shape. So, the molecule with only London - dispersion forces is $CBr_4$ (3).

Step2: Analyze London - Dispersion and Dipole - Dipole Forces

Polar molecules have both London - dispersion and dipole - dipole forces. $CH_3F$ is a polar molecule because of the electronegativity difference between C and F and its non - symmetrical structure. So, the molecule with London - dispersion and dipole - dipole forces is $CH_3F$ (1).

Step3: Analyze London - Dispersion, Dipole - Dipole and Hydrogen Bonding

Hydrogen bonding occurs when H is bonded to N, O, or F. $NH_2Cl$ has N - H bonds, so it has London - dispersion, dipole - dipole, and hydrogen bonding. So, the molecule with these forces is $NH_2Cl$ (2).

Step4: Analyze Ionic Bonds

Ionic bonds form between a metal and a non - metal. $MgBr_2$ is an ionic compound as Mg is a metal and Br is a non - metal. So, the molecule with ionic bonds is $MgBr_2$ (4).

Answer:

3124