August 2018 NY Regents Chemistry Exam
47 Which metal reacts spontaneously with NiCl2(aq)? (1) Au(s)
(2) Cu(s)
(3) Sn(s)
(4) Zn(s)
Solution: Table J on the Reference Table lists the metals from the most active (on top) to the least active. If a metal higher than Ni on table N it will be able to react spontaneously with NiCl2 and replace nickel in a single replacement reaction.
Answer: 4
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