Answer :
Final answer:
Carbon tetrachloride and phosgene are represented by Lewis structures showing their covalent bonds and non-bonding electron pairs, with carbon tetrachloride having single bonds to four chlorine atoms and phosgene featuring a carbon atom double-bonded to oxygen and single-bonded to chlorine atoms.
Explanation:
The student asked about the suitability of a fire extinguisher for different classes of fires, but the provided information leads to a chemistry question related to the compounds carbon tetrachloride and phosgene. The Lewis structures for these compounds would show the arrangement of the valence electrons around the central atoms. Carbon tetrachloride (CCl4) has a central carbon atom surrounded by four chlorine atoms, with single covalent bonds joining them. Each chlorine atom has three pairs of non-bonding electrons. Phosgene (Cl2CO) consists of a central carbon atom double-bonded to an oxygen atom and single-bonded to two chlorine atoms, with each chlorine atom again having three pairs of non-bonding electrons.
