What is the difference between distance and location? Then explain an example that explains the difference between them.

Start Location: is the starting point of route, where the distance calculation start from, origin city or place name. End Location: is the end point of route, where the distance calculation end, destination city or place name. Distance Unit: is the unit of distance, you can choose kilometers, miles or meters.

Explanation:

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substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.