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Vinil7 [7]
3 years ago
8

Here is the overall reaction of a mercury oxide dry cell: Zn + HgO --> ZnO + Hg. In this reaction, which of the following get

s oxidized?
A. Hg

B. O

C. Zn

D. HgO
Chemistry
2 answers:
lesantik [10]3 years ago
8 0

Answer:

Zn

Explanation:

Alona [7]3 years ago
3 0
Zinc is oxidized because it starts as a metal with an oxidation state of zero and ends up as an atom bound to oxygen. Oxygen has two bonds, so the oxidation state of Zinc would be 2. The Mercury is therefore reduced because it undergoes the opposite process. This is a REDOX reaction, and the two half-reactions are: 

Zn -> Zn(+2) + 2e(-) 
Hg(+2) + 2e(-) -> Hg

The answer to your question is C. I hope that this is the answer that you were looking for and it has helped you.
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8 0
2 years ago
When solutions of barium chloride and lithium sulfate are mixed, the spectator ions in the resulting reaction are?
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8 0
3 years ago
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What is the molar mass of chlorine?
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4 0
3 years ago
Using the accompanying chart, calculate the volume of a Densities of Group 14 Elements tin block that has a mass of 95.04 grams
saw5 [17]

<u>Answer:</u> The volume of given mas of tin block at STP is 13.0cm^3

<u>Explanation:</u>

To calculate volume of of the substance, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

We are given:

Mass of tin = 95.04 g

Density of tin = 7.31g/cm^3

Putting values in above equation, we get:

7.31g/cm^3=\frac{95.04g}{\text{Volume of tin}}\\\\\text{Volume of tin}=\frac{95.04g}{7.31g/cm^3}=13.0cm^3

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