Multiple Choice
Which of the following Lewis dot structures correctly represents the neutral compound CaCl_2?
3
views
11. Bonding & Molecular Structure
Lewis Dot Structures: Neutral Compounds
Struggling with General Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following Lewis structures for H2O correctly shows the partial charges and nonbonding electrons?
A
H:O: with two lone pairs on O, and δ− on O, δ+ on each H
B
H–O–H with no lone pairs and no partial charges
C
H–O–H with one lone pair on O, and δ+ on O, δ− on each H
D
H:O: with two lone pairs on O, and no partial charges
Verified step by step guidance1
Recall that the Lewis structure of water (H\_2O) shows oxygen bonded to two hydrogen atoms with two lone pairs of electrons on oxygen.
Draw the Lewis structure with oxygen in the center, single bonds to each hydrogen, and two lone pairs (four electrons) on oxygen, represented as pairs of dots.
Understand that oxygen is more electronegative than hydrogen, so it will attract the bonding electrons more strongly, resulting in a partial negative charge (δ\-) on oxygen and partial positive charges (δ\+) on each hydrogen.
Check that the structure correctly shows the two lone pairs on oxygen and the partial charges: oxygen with δ\- and hydrogens with δ\+.
Eliminate options that either lack lone pairs on oxygen or incorrectly assign partial charges opposite to the electronegativity trend.
5:56mWatch next
Master Lewis Dot Structures: Neutral Compounds with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
Lewis Dot Structures: Neutral Compounds practice set
Problem sets built by lead tutorsExpert video explanations