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Chemistry
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23 Nov 2019

Write the redox half reaction for the following: If we put zinc metal in a solution of copper(II) chloride, we will dissolve the zinc and precipitate copper. Is this likely to occur?

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Elin Hessel
Elin HesselLv2
23 Oct 2019

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Related questions

A common experiment to determine the relative reactivity of metallic elements is to place a pure sample of one metal into an aqueous solution of a compound of another metallic element. If the pure metal you are adding is more reactive than the metallic element in the compound, then the pure metal will replace the metallic element in the compound. For example, if you place a piece of pure zinc metal into a solution of copper(II) sulfate, the zinc will slowly dissolve to produce zinc sulfate solution and the copper (II) ion of the copper(II) sulfate will be converted to metallic copper. Write the unbalanced reaction for this process.

write the balanced equation for the following reactions.

1. Copper + nitric acid ---> copper(II) nitrate + nitrogen dioxide + water

Copper(II) Nitrate + NaOH

2. changing copper(II) nitrate to copper(II) hydroxide

(Unless specifically stated do not assume water is a reactant or product; often it is only a medium in which the reaction occurs.)

3. Changing copper(II) hydroxide to Copper(II) Oxide.

(Water is also formed in this reaction)

4. Changing Copper(II) Oxide to Copper(II) Sulfate.

Copper(II) oxide + H2(SO4)

(Water is also formed)

5. Changing Copper(II) Sulfate to Copper

Copper(II) + zinc ---> Copper + Zinc sulfate

6. Zinc + Hydrochloric acid ---> Hydrogen Gas + Zinc Chloride

When a strip of zinc metal is placed in a blue aqueous solution ofcopper(II) sulfate, the surface of the zinc becomes coated with areddish solid, and the zinc begins to dissolve to form aqueous zincsulfate. Which of the following statements regardingthis reaction is correct?

Answer

The copper(II) is being oxidized.
The zinc is being reduced.
The sulfate ion is being reduced.
The solution will lose its blue color as the reactionprogresses.
The reaction described is nonspontaneous.

??

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