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Alkanes are chemical compounds consisting of only carbon and hydrogen atoms. Two types of alkanes are n-alkanes (molecules in which the carbon atoms are bonded together to form a chain) and cycloalkanes (molecules in which the carbon atoms are bonded together to form a ring). Figure 1 shows an example of an n-alkane and an example of a cycloalkane. Figure 1 H H H H H C H H H C C C H C C H H H H H n-alkane cycloalkane Table 1 shows, for each of 7 n-alkanes, the name, chemical formula, melting point (MP) at 1 atmosphere (atm) of pressure, and boiling point (BP) at 1 atm. Table 1 Chemical MP BP Alkane formula (°C) (°C) Propane C 3 H 8 −187 −42 Butane C 4 H 10 −138 −1 Pentane C 5 H 12 −130 36 Hexane C 6 H 14 −95 69 Heptane C 7 H 16 −91 98 Octane C 8 H 18 −57 126 Nonane C 9 H 20 − 53 151 several passages in this test. by several questions. After the best answer to each corresponding oval on your may refer to the passages as a calculator on this test. Table 2 shows, for each of 7 cycloalkanes, the name, chemical formula, MP at 1 atm, and BP at 1 atm. Table 2 Chemical MP BP Alkane formula (°C) (°C) Cyclopropane C 3 H 6 −128 −31 Cyclobutane C 4 H 8 −91 13 Cyclopentane C 5 H 10 −93 49 Cyclohexane C 6 H 12 7 81 Cycloheptane C 7 H 14 −8 119 Cyclooctane C 8 H 16 15 151 Cyclononane C 9 H 18 11 173