Molecular and Ionic Bonding
Which molecule would most effectively hydrate in water based on interactions between permanent dipole and permanent dipole forces?
NOCl, as it has a permanent dipole but less capacity for hydrogen bonding compared to acetic acid
Carbon monoxide, although it contains a triple-bonded oxygen atom, does not readily participate in substantial dipole-dipole interactions with water due to overall nonpolarity
NH4Cl, despite being highly soluble due primarily to strong coulombic attractions rather than extensive hydrogen bond networks
Acetic acid (CH3COOH), due to both hydroxyl and carbonyl groups that enable it to form multiple hydrogen bonds with water
What is the molecular geometry of HCN?
Bent
Trigonal Pyramidal
Linear
Trigonal Planar
How would decreasing pressure by increasing volume affect a system at equilibrium that involves gaseous species with more moles on the product side?
There is no effect on equilibrium since temperature remains constant.
The rate constants for both forward and reverse reactions decrease proportionally.
The equilibrium shifts toward products, resulting in decreased total gas volume.
The equilibrium shifts toward reactants to increase pressure according to Le Chatelier's principle.
What is the molecular geometry of NH₃?
Bent
Tetrahedral
Trigonal Pyramidal
Linear
For a trigonal bipyramidal electronic geometry, which position will equatorial substituents likely occupy if they are more electronegative than axial substituents?
A random distribution because electronic geometries do not affect distribution.
Axial positions for increased distance from other substituents.
Equatorial positions due to lesser electron repulsion compared to axial positions.
Altering between axial and equatorial positions to minimize overall molecular polarity.
What is the expected molecular geometry of IF₂⁻ when applying VSEPR theory?
Trigonal planar
Bent
Linear
T-shaped
In ethene (C2H4), what is the hybridization of the carbon atoms that allows for the formation of a double bond?
sp^2
sp
dsp^3
sp^3

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What is the molecular geometry of H₂O?
Bent
Tetrahedral
Trigonal planar
Linear
What is the hybridization of the central atom in CO3^2- if it has an electron geometry of trigonal planar?
sp^2 hybridized orbitals
sp^3d hybridized orbitals
sp hybridized orbitals
sp^3 hybridized orbitals
Which molecule would have a bent molecular geometry and an approximate bond angle of 104.5 degrees due to its electron pair geometry?
H2O
NH3
CH4
CO2