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Question 15 (Mandatory) (10 points)
A mass of 0.6539 g of zinc is dissolved in excess hydrochloric acid, according to the
following equation:
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Zn(aq) + 2HCl(aq)
ZnCl2(aq) + H2(g)
How many moles of Clions are formed in the reaction?
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A) 0.1 moles
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B) 0.01 moles
C) 0.002 moles
D) 0.02 moles
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answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

c)red bank

explanation:

red bank is a borough in monmouth county, new jersey, incorporated in 1908 and located on the navesink river, the area's original transportation route to the ocean and other ports.