gcse chemistry

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ineedhelp280
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#1
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#1
hi could anyone answer these questions?
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ineedhelp280
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#2
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#2
(Original post by ineedhelp280)
hi could anyone answer these questions?
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MTChemist
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#3
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#3
Hey its me again
for the first one - its because chromate ions are negative and are yellow so they will accumulate at the positive electrode and turn the solution from green to yellow
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MTChemist
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#4
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#4
For number 2 it should be water
For number 3 positive cu2+ ions travel to negative electrode (electrostatic attraction) and accept electrons - reduction - so they turn into copper metal and deposit around the electrode
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MTChemist
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#5
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#5
for the final one - potassium/potassium ions go to the negative electrode and iodine/iodide ions go to the positive electrode
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ineedhelp280
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(Original post by MTChemist)
Hey its me again
for the first one - its because chromate ions are negative and are yellow so they will accumulate at the positive electrode and turn the solution from green to yellow
Thanks so much for all your help, I might actually pass my test now
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MTChemist
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#7
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#7
no worries - and GOOD LUCK !!!
you got this
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