According to the Federal Reserve Bureau, the average cost of an annual premium for homeowners insurance is between $300 and $1,000.For most homeowners, the annual costs for a homeowners insurance policy can be estimated by dividing the value of the home by 1,000, then multiplying the result by $3.50.ccording to the Federal Reserve Bureau, the average cost of an annual premium for homeowners insurance is between $300 and $1,000.
Types of structural isomerism Chain isomerism These isomers arise because of the possibility of branching in carbon chains. For example, there are two isomers of butane, C4H10. In one of them, the carbon atoms lie in a straight chain whereas in the other the chain is branched.
Pentane (C5H12) has three structural isomers. Isomer 1 is n-pentane, the straight chain normal structure for pentane. Isomer 2 is 2-methylbutane, a branched chain with a carbon* atom joined onto three other carbon atoms.Isomer 3 is 2,2-dimethylpropane, a branched chain with the central carbon* atom joined onto four other carbon atoms.Note that for all the isomers, each carbon atom has four bonds (valency 4), and each hydrogen atom has one bond (valency 1).Valency is the combining power of an atom.somer 3 is 2,2-dimethylpropane, a branched chain with the central carbon* atom joined onto four other carbon atoms. Note that for all the isomers, each carbon atom has four bonds (valency 4), and each hydrogen atom has one bond (valency 1). Valency is the combining power of an atom.