Question Topics: Structure 2.2 The covalent model

What is the formal charge of the nitrogen atom in \( NO_3^- \)?

What is the hybridization of carbon and oxygen in \( CO_3^{2-} \)?

Which forces of attraction cause the boiling point of ammonia, \( NH_3 \), to be significantly higher than that of

What are the hybridizations of the N, C and O atoms in formamide (\( H_2N-CHO \))?

What are the electron domain and molecular geometries of \( XeCl_4 \)?

Which molecule is polar?

Diagrams of four stable allotropes of carbon are shown. W displays a 3D covalent network of tetrahedral carbons. X displays

Nitrogen(I) oxide, \( N_2O \), can be represented by two Lewis formulas. Structure X has a triple bond between the

Which row puts these molecules in order of decreasing bond \angle?

Kekul\acute{e} suggested a structure of benzene with alternating single and double bonds. Which piece of evidence disproves this structure?