In the chemical changes experiment on copper, which of the steps can be omitted if the goal is only to obtain dry copper (II) oxide solid? a. Addition of NaOH to Cu(NO3)2 solution. b. Boiling of the previous solution until black c. Decanting and adding sulfuric acid to dissolve black precipitate d. Filtering and heating until dry and fully black

Chemistry by OpenStax (2015-05-04)
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Chapter19: Transition Metals And Coordination Chemistry
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Problem 11E: Iron (II) can be oxidized to iron (III) by dichromate ion, which is reduced to chromium (III) in...
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In the chemical changes experiment on copper, which of the steps can be omitted if the goal is only to obtain dry copper (II) oxide solid?

a. Addition of NaOH to Cu(NO3)2 solution.

b. Boiling of the previous solution until black

c. Decanting and adding sulfuric acid to dissolve black precipitate

d. Filtering and heating until dry and fully black

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