According to the law of conservation of mass, what should the product side of this single replacement reaction look like?
Zn+2HCl--->?
A. H2ZnCl2
B. H2+Zn+Cl2
C. H2+ZnCl2
D. ZnCl2
Is the answer D?
1. A
2. D
3 . B
4 . C
Those are the complete answers! :)
A
D
B
C
Those are right. I got a 100%
Zn(s) + 2HCl(aq) ---> ZnCl2(aq) + H2(g)
It is D, but don't forget to include the extra hydrogen atoms, or else the equation violates the law of conservation of mass. In this case, hydrogen gas (H2) is formed.
Thanks can you help me with the question I just posted?
@Daya Thanks!
Thanks Dayna!
it is c.
Thanks Victoria got a 100%
its c
To determine the product side of a single replacement reaction, you need to understand the reactivity series of metals. The reactivity series ranks metals from most reactive to least reactive.
In this reaction, zinc (Zn) reacts with hydrochloric acid (HCl), which is an aqueous solution of hydrogen chloride. According to the reactivity series, zinc is more reactive than hydrogen. Therefore, it will replace hydrogen in the compound and form a new compound.
The reaction can be represented as follows:
Zn + 2HCl ---> ZnCl2 + H2
In this reaction, zinc (Zn) replaces hydrogen (H) in the hydrochloric acid (HCl) to form zinc chloride (ZnCl2) and hydrogen gas (H2).
So, the correct answer is C. H2 + ZnCl2, which correctly represents the products of the reaction.