chemistry transition metals a level question

I cant find the mark scheme for this question. Please help thanks:

The [CuCl2]- ion is formed by boiling a solution of copper(II) chloride with copper
turnings and concentrated hydrochloric acid.
(i) Write an equation for this reaction

Reply 1

TypicalNerd

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Original post by Thumb611

I cant find the mark scheme for this question. Please help thanks:

The [CuCl2]- ion is formed by boiling a solution of copper(II) chloride with copper
turnings and concentrated hydrochloric acid.
(i) Write an equation for this reaction

Are you stuck on what to do about the hydrogens when setting up the equation?

You should know the formulae of the specified reactants and products. From that, you can set up an unbalanced equation and begin to balance it.

Note that TSR rules do not allow me to give you a full solution and I’m supposed to instead guide you towards a solution.

(edited 1 year ago)

Original post by Thumb611

I cant find the mark scheme for this question. Please help thanks:

The [CuCl2]- ion is formed by boiling a solution of copper(II) chloride with copper
turnings and concentrated hydrochloric acid.
(i) Write an equation for this reaction

This type of redox reaction is sometimes called a synproportionation reaction, where two different oxidation states react to produce one. It's the opposite of disproportionation.

It may help you to write out two half-equations, one for the oxidation and one for the reduction half-equation.
You can balance them using hydrogen ions, water molecules and electrons.
Then equalise the electrons by multiplying through by appropriate numbers.
Finally, add the two half-equations and simplify if necessary.

chemistry transition metals a level question

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