Use these 3 free Unit 10 practice problems as a first check. When you want more reps on Lewis structures, geometry, polarity, and intermolecular forces, premium unlocks Quick Sets of 3, Standard Sets of 9, and Extended Sets of 18 from this 81-problem bank.
3 Free Sample Problems
Work these 3 to find out whether bonding patterns are connecting as one system — or whether they still read like a list of separate rules that haven't fully clicked yet.
#4Formal Charge
In the Lewis structure of SO2, the central sulfur atom has 1 double bond and 1 single bond to oxygen, plus 1 lone pair. What is the formal charge on sulfur? (S has 6 valence electrons.)
#5VSEPR Geometry
A molecule has 4 bonding pairs and 0 lone pairs around the central atom. What is its molecular geometry?
#6Lewis Structure + Geometry
Draw the Lewis structure of water (H2O). How many lone pairs are on oxygen, and what is the molecular geometry?
Prep for the test — not just the homework
The 3 free problems show you where you stand. The full bank is how you close the gaps before the test.
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Full worked solutions — see exactly where your setup went off track, not just whether you were right
81 problems across Lewis structures, VSEPR shapes, polarity, and intermolecular forces
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General Chemistry · Unit 10 · Chemical Bonding Practice