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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?

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Callie

  1. 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.

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    David

  2. Thanks can you help me with the question I just posted?

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    Callie

  4. it is c.

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    Victoria

  5. Thanks Victoria got a 100%

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    Buttercup214

  6. its c

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    Juice

  8. 1. A
    2. D
    3 . B
    4 . C
    Those are the complete answers! :)

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    Dayna Loves Momo

  9. @Daya Thanks!

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    HorseTail_Gaming

  10. Thanks Dayna!

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    not+really

  12. A
    D
    B
    C
    Those are right. I got a 100%

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    Anonymous

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