According to the law of conservation of mass, what should the product side of this single replacement reaction look like?
Zn+2HCI------>
A. H2 ZnCl2
B. H2 + Zn + Cl2
C. H2 + ZnCl2
D. ZnCl2
Could anyone explain it to me???
Thank you
Zn -> Zn++, replaces 2H+ in HCl, 2H+ ->H2
so
H2 + Zn Cl2
A is correct.
Zn + 2HCl ==> ZnCl2 + H2. The mass balances. On the left you have
65.4 +2*H + 2*35.5 = 138.4. On the right you have
65.4 + 2*35.5 + 2*1 = 138.4
Okay thank you!!!
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To determine the product side of a chemical reaction, we need to understand the single replacement reaction and apply the law of conservation of mass.
In a single replacement reaction, one element replaces another element in a compound. In this case, we have zinc (Zn) reacting with hydrochloric acid (HCI).
First, let's break down the reactant side of the equation:
Zn + 2HCI
Zinc (Zn) is a metallic element, and hydrochloric acid (HCI) consists of hydrogen (H) and chlorine (Cl).
Now, let's analyze the reaction and see what happens when zinc replaces hydrogen in hydrochloric acid.
Zn + 2HCI
Zinc (Zn) is more reactive than hydrogen (H), so it will replace hydrogen in hydrochloric acid. This results in the formation of zinc chloride (ZnCl2) and hydrogen gas (H2).
Therefore, the correct answer is option C: H2 + ZnCl2.
By applying the law of conservation of mass, we ensure that the number and types of atoms on both sides of the reaction are balanced. In this case, we have the same number of each element on both sides of the equation, satisfying the law of conservation of mass.