Which metal is the best choice for recovering copper (reacting with copper) from the solution? Fe, Ag, Zn, or Al
1 answer:
Answer: The correct option is Aluminium.
Explanation: To recover copper from the solution, we require a metal which can easily displace copper from the solution.
The reactions in which metal displaces another metal in a chemical reaction are known as single displacement reactions. These reactions are studied using reactivity series.
A is more reactive than B.
The metal which lie above in the reactivity series will easily displace the metal which lies below in the reactivity series.
From the given options, Aluminium is the most reactive of all the metals and hence, it is the best choice for recovering copper from its solution.
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The answer is
<h2>1.61 g/cm³</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass = 12.9 g
volume = 8 cm³
The density of the block is
We have the final answer as
<h3>1.61 g/cm³</h3>Hope this helps you