heptane

"Gasoline is a hydrocarbon fuel used in many cars. "

"After walking home in the driving rain, his clothes were saturated."

"My sister is very helpful, especially when it comes to organizing things. "

"My sometimes neighbor, a retired teacher, still visits the school occasionally. "

"Water is a common solvent that can dissolve sugar. "

"Glucose and fructose are isomers; they both have the formula C6H12O6, but their atoms are arranged differently. "

"The factory used petroleum to fuel its machinery. "

"She obtained her driver's license after passing the driving test. "

"The chemistry class focused on how different elements combine to form new substances. "

""Because it contains only carbon and hydrogen atoms arranged in a straight chain, that organic molecule is classified as an aliphatic." "

"The science class experimented with different substances to see how they reacted to heat. "

"The dissolve between the shot of the teacher writing on the board and the shot of the students' attentive faces was smooth and effective. "