Jaydenbaysinger122
28.12.2019 •
Chemistry
What are the oxidation numbers of the atoms in this reaction?
check all that apply.
mg(s) + 2hcl(aq) → mgcl2(aq) + h2(g)
0 for mg in mg and mgcl2
0 for mg(s) and h in h2
+1 for h in hcl
-1 for cl in hcl
+2 for mg in mgcl2
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Ответ:
0 for Mg(s) and H in H2
+1 for H in HCl
-1 for Cl in HCl
+2 for Mg in MgCl2
only the first statement is wrong
Ответ:
Answer : The correct options are:
0 for Mg(s) and H in
+1 for H in HCl
+1 for H in HCl
+2 for Mg in
Explanation :
The given chemical reaction is:
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
is, (+2)
Oxidation state of Cl in
is, (-1)
Oxidation state of hydrogen in
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.
Ответ:
a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
Explanation: