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Soloha48 [4]
3 years ago
15

What are the oxidation numbers of the atoms in this reaction?

Chemistry
2 answers:
SVEN [57.7K]3 years ago
6 0

Answer : The correct options are:

0 for Mg(s) and H in H_2

+1 for H in HCl

+1 for H in HCl

+2 for Mg in MgCl_2

Explanation :

The given chemical reaction is:

Mg(s)+2HCl(aq)\rightarrow MgCl_2(aq)+H_2(g)

Oxidation state of Mg(s) is, 0

Oxidation state of hydrogen in HCl is, (+1)

Oxidation state of chlorine in HCl is, (-1)

Oxidation state of Mg in MgCl_2 is, (+2)

Oxidation state of Cl in MgCl_2 is, (-1)

Oxidation state of hydrogen in H_2 is, 0

The given reaction is a single displacement reaction in which the most reactive metal (Mg) displaces the least reactive element (H) from its compound.

It is also a redox reaction because the oxidation state of Mg changes from 0 to (+2) and shows oxidation and the oxidation state of hydrogen changes from (+1) to 0 and shows reduction.

OLEGan [10]3 years ago
5 0
<span>
all these are correct:
0 for Mg(s) and H in H2

</span><span>+1 for H in HCl

</span><span>-1 for Cl in HCl
</span>
<span>+2 for Mg in MgCl2

only the first statement is wrong</span>
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