Identify the mistake in the following chemical equation. State what is wrong with the equation; do not correct the equation.MgCl2(aq) + ZnS(aq) --> MgS(s) + ZnBr2(aq)
Question
Identify the mistake in the following chemical equation. State what is wrong with the equation; do not correct the equation.MgCl2(aq) + ZnS(aq) --> MgS(s) + ZnBr2(aq)
Solution
The mistake in the chemical equation is that the products do not match the reactants. Specifically, the reactants are magnesium chloride (MgCl2) and zinc sulfide (ZnS), but the products are magnesium sulfide (MgS) and zinc bromide (ZnBr2). The problem is that bromine (Br) appears in the products but not in the reactants. Similarly, chlorine (Cl) appears in the reactants but not in the products. This violates the law of conservation of mass, which states that the same elements must appear on both sides of a chemical equation.
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