There are three equivalent Lewis structures for CO32.
Two equivalent Lewis structures are necessary to describe SF4. These structures differ in the arrangement of the lone pair on sulfur, resulting in resonance structures.
Two equivalent Lewis structures are necessary to describe the bonding in BrO4 due to the presence of multiple resonance structures.
Two equivalent Lewis structures are necessary to describe the bonding in SO3. This is because sulfur in SO3 can have different formal charges when forming bonds, leading to resonance structures.
Two equivalent Lewis structures are necessary to describe the bonding in SeBr2O. This is because the central selenium atom can form two different resonance structures by moving a lone pair from the oxygen atom to form a double bond with selenium.
Three equivalent Lewis structures are needed to describe the bonding in PO(OH)3. This is because the central phosphorus atom can form three different bonds with the three oxygen atoms, resulting in resonance structures.
Two equivalent Lewis structures are necessary to describe SF4. These structures differ in the arrangement of the lone pair on sulfur, resulting in resonance structures.
Two equivalent Lewis structures are necessary to describe the bonding in BrO4 due to the presence of multiple resonance structures.
Two equivalent Lewis structures are necessary to describe the bonding in SO3. This is because sulfur in SO3 can have different formal charges when forming bonds, leading to resonance structures.
A single Lewis structure can be used to represent the bonding in SeF2O.
Two equivalent Lewis structures are necessary to describe the bonding in SeBr2O. This is because the central selenium atom can form two different resonance structures by moving a lone pair from the oxygen atom to form a double bond with selenium.
Three equivalent Lewis structures are needed to describe the bonding in PO(OH)3. This is because the central phosphorus atom can form three different bonds with the three oxygen atoms, resulting in resonance structures.
Two equivalent Lewis structures are needed to describe the bonding in SF4O, as the sulfur atom can have up to two different placements of the lone pair since it is surrounded by five regions of electron density.
Two equivalent Lewis structures are necessary to describe the bonding in NH4+ because nitrogen in the ammonium ion has a full octet and can form a single coordinate covalent bond with each of the four hydrogen atoms, resulting in two resonance structures.
Two equivalent Lewis structures are necessary to describe the bonding in XeO4. The central xenon atom can form two different arrangements of double bonds with oxygen atoms due to the lone pairs present on the oxygen atoms.
Two equivalent Lewis structures are needed to describe the bonding in SO42- due to resonance. In one Lewis structure, two double bonds are formed between sulfur and oxygen atoms, while in the other structure, one double bond and one single bond are present. The actual structure of SO42- is a combination of these resonance structures.
The bonding in peracetic acid (POOH) can be described using two equivalent Lewis structures. These structures account for the resonance between the double bond between the phosphorus and one of the oxygen atoms and the single bond to the hydroxyl group. This resonance contributes to the stabilization of the molecule and accurately represents the distribution of electrons.
1 Source: My online chemistry book.