Showing the movement of ions due to an electric field

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7 Terms

1
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What colour is Copper Chromate?

Green

2
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What two components is Copper Chromate made of?

Cu2+ and CrO4 2-

3
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What colour is Cu2+?

Blue

4
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What colour is CrO4 2-?

Yellow

5
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Explain this experiment

If placed in an electric field, the blue Cu 2+ is attracted to the negative cathode while the yellow CrO4 2- is attracted to the positive anode

6
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Draw a diagram of this experiment at the start of the reaction

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7
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Draw a diagram of this experiment after 20 minutes

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