What is the name of this hydrocarbon? a) A skeletal model starts with C H 3 at the left, goes down to a valley, up to a peak, and then down again.
b) The valley and the peak have C H 3; there is also a C H 3 on a line straight down from the end of the centerline of carbons. 2,3-dimethylpentane 3,4-dimethylbutane 3,4-diethylpentane 2,3-diethylbutane

yes it is balanced

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

the answer your looking for is c).