Answer:
Hexane.
Explanation:
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In this case, since the general reaction of the compound C4H14 with chlorine is:

Which stands for a substitution chemical reaction in which one chlorine is able to replace one hydrogen and therefore hydrogen chloride gives off; we infer that the initial compound, C4H14, shows off the
formula characteristic of alkanes; in such a way, as it has six carbon atoms, we infer it is hexane.
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It means that they are bonded together
Answer: Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.