When zinc is combined with hydrogen chloride, zinc chloride and hydrogen are produced. The boiling points of these substances are shown in the table below.
Substance zinc hydrogen
chloride zinc
chloride hydrogen
Boiling Point
(°C) 907 −85 756 −253
Which is the correct conclusion based on the data?
A.
A chemical reaction occurred because the chemicals that were combined have different boiling points than the chemicals produced.
B.
A chemical reaction did not occur because both zinc and zinc chloride are known to be solids at room temperature.
C.
A chemical reaction did not occur because physical properties, such as boiling point, do not change.
D.
A chemical reaction took place because the same elements were present before and after the change occurred.
