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3 years ago

Which metal is the best choice for recovering copper (reacting with copper) from the solution? Fe, Ag, Zn, or Al

Chemistry

1 answer:

Gnoma [55]3 years ago

3 0

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.

$A+BC\rightarrow AC+B$

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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Where do you write salt and suger why

Rashid [163]

Answer:

here: "salt and sugar"

Explanation:

I dunno, looks pretty, gives 5 points. even tough any context is missing

but seriously:

salt and sugar look the same. just someone with a split personality

7 0

2 years ago

Which of the following isoelectronic series is correctly ranked from largest ionic radius to smallest ionic radius? 1. N 3−, O 2

love history [14]

Answer:

Option 1: N⁻³ > O⁻² > F⁻ > Na⁺ > Mg⁺²

Explanation:

Ionic radius is the radius of an atom´s ion in ionic crystal structure. In an ion that lose an electron, to form a cation, the radius of the ion gets smaller, because the repulsion between electrons decrease because fewer electrons are present. Conversely, adding on electron to a neutral atom, to form an anion, causes electron - electron repulsions to increase, so the size of the radius of the ion gets bigger.

Isoelectronic species are ions or elements that have the same number of electrons in their electronic shells but have different overall charges, because of their different atomic numbers.

In a isolelectronic series (same number of electrons), the increase of the positive charge (given by the number of protons in the nucleus), will cause a decrease in radius beacuse the greater electrostatic attraction between the electrons and the nucleus. Consequently, the ion with the greatest nuclear charge will have the smallest ionic radius and the ion with the smallest nulear charge will have the largest ionic radius.

We will use this principle to solve our problem.

In our case, the given ions are:

N⁻³ : Z = 7, e⁻ = 10
O⁻²: Z= 8, e⁻ =10
F⁻: Z = 9, e⁻ = 10
Na⁺: Z= 11, e⁻ = 10
Mg⁺²: Z=12, e⁻ =10

where Z= number of protons, and e⁻ = number of electrons.

Hence the decreasing order of ionic radius is:

N⁻³ > O⁻² > F⁻ > Na⁺ > Mg⁺²

Have a nice day!

4 0

2 years ago

What is the solution of Ag + Cu2+ --> ?

Leviafan [203]

Explanation:

b I dont really know okau

5 0

2 years ago

What are the lanthanide & actinide series?

ch4aika [34]

Answer:

The lanthanides and actinides together are sometimes called the inner transition elements.

Explanation:

They are called this because they come up in the periodic table after actinium

Hope this helps :)

8 0

2 years ago

How many spatial orientations are available for the p sublevel

Sonja [21]

4 to 5 you are welcome

3 0

3 years ago