Which is TRUE of the reactants in this displacement reaction? Fe + 2HCl FeCl2 + H2
2 answers:
Answer: Option (A) is the correct answer.
Explanation:
A displacement reaction is defined as a reaction in which an element reacts with a compound and an element of the compound is displaced by another element.
For example,
In this reaction, there are one Fe atom, 2 hydrogen and 2 chlorine atoms on the reactant side.
Since, it is a chemical reaction therefore, properties of both reactants and products will be different.
Species present on the left side of arrow are reactants and on the right side of arrow depicts products.
Thus, we can conclude that the statement reactants are located to the left of the arrow in the chemical equation, is true.
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What you have to keep in mind is that
pH = - log[H+]
so 3.75 = -log[H+], we get [H+]=
,
that is [H+]≈1.77827941×
(i see this result on calculator)
this is just what you want!
pH = - log[H+]
so 3.75 = -log[H+], we get [H+]=
that is [H+]≈1.77827941×
this is just what you want!