The element X is Copper.
Explanation :
Reactive metals from 3d transition series like Cu are very reactive because their standard reduction potential values are low.
Hence, when treated with a acid it tends to liberate hydrogen gas.
Also, because of its low reduction potential value, it can easily displace lead and tin from their salt solutions.
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The Romans built the aqueducts, which were an important part of their water system.
Answer:
cause it has more
space between molecules.
O C. Ice has a higher density than li
Explanation: