QCE Chemistry Flashcards Detailed !!
Chemistry
Hi there, this is a flashcard for those doing chemistry. I made near my externals in 2021 and I achieved 40/50 for my externals (I struggled with chemistry a lot). Some Topics are not covered especially end of unit 3 and 4 but you will know which ones are not if you open it with Anki app on your pc because it is divided into chapters (you will know the missing chapters). It also has a lot of practice questions. It is not perfect like my bio but build on it thro the year and might be useful !
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| Front | Explain which types of molecules are polar? |
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| Front | Explain the principles of electroplating. |
| Back | To electroplate an item we need:Electrolyte solution containing cations of the desired metal.Item being plated as the cathode.A conductive anode to complete the circuit. We can use electroplating to purify a sample of metal. For this we require:The impure sample of metal as the anode.A highly pure sample of the desired metal as the cathode.Electrolyte solution containing ions of the desired metal. In both reactions, the desired metal is deposited on the cathode by reduction of the ion. In the case of purifying metal, the anode reduces in mass as the metal atoms are oxidised into their cations, replacing the ions being reduced onto the cathode. |
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