Draw a bond-line structure for each of the following compounds: 2.55 a) ch2-chch2c(ch3)3 (b) (ch3ch2)2chch2ch2oh (d) ch3ch2och2ch2och2ch3 (c) ch coch2ch(ch3)2 (f) (ch3)2c=chch3 (e) (ch3ch2)3cbr

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Explanation:

Bond-line structures are representations of molecules, where lines are drawn to represent the bonds between carbon atoms or between carbon atoms and heteroatoms (atoms other than C or H). Hydrogen atoms are not represented. Heteroatoms are indicated by their symbol but carbon atoms are not. Carbon atoms are located at the intersection of two lines.

A single bond is represented by one parallel line, a double bond by two parallel lines, and a triple bond by three parallel lines.

For (c), the formula is assumed to CH₃COCH₂CH(CH₃)₂

- decrease the number of plants and animals living in the water.

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.