Which image represents ether? Check all that apply. A skeletal model has 6 carbons, with an oxygen between the first and second carbon. A 5-carbon chain, with O H before the first carbon. A skeletal model with line segments that slant up, down, run flat in a double bond, slant up, down, and up, with an O H single bonded to the next to last carbon. A skeletal model has 3 carbons, with an oxygen between the first and second carbon.