Zn -> Zn++, replaces 2H+ in HCl, 2H+ ->H2
so
H2 + Zn Cl2
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
4 answers
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
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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Also, for "Mass and Atoms Quick Check"
Which statement describes the quantities that can be found using the number of moles?
Another one is Modeling Fission Quick Check
Which fact is true during a fission chain reaction?(1 point)
And "Alpha Particle Emission Quick Check"