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- b@AtGraphic 130,100
- '@Picture ADD20_01.bmp
- @At 135,15
- At the Cathode:
- When two hydrogen ions reach the cathode they accept an
- electron each and combine to form a molecule of hydrogen.
- @PlaySoundFile ADD20_01.wav
- @WaitForSoundToFinish
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- @Prompt
- @At 139,93
- To represent this as an equation we use the symbol e- for
- an electron.
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- @AtGraphic 178,133
- @Picture ADD20_T1.bmp
-
- '2H+(aq) +2e- -> H2(g)_
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- @Prompt
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- @AtGraphic 130,200
- '@Picture ADD20_02.bmp
- @At 135,167
- When two chloride ions reach the anode they give up an electron
- each and combine to form a molecule of chlorine.
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-
- @prompt
- @At 134,203
- Try completing the anode equation.
- @AtGraphic 221,237
- @Picture ADD20_T3.bmp
- @At 174,247
- #[N36]
- @At 268,247
- #[N36]
- ' #[N36]Cl- #[N36]e- -> Cl2
-
- @Answer 2,-2
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-
- @Feedback Wrong
- #bNo#b, at the anode two chloride ions lose
- 2 electrons to become a chlorine molecule.
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-
- @Feedback Correct
- #bYes#b, at the anode two chloride ions lose
- 2 electrons to become a chlorine molecule.
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- @Question
- @Prompt
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- @AtGraphic 200,264
- @Picture ADD20_T2.bmp
- @At 135,100
- '2H+ +2e- -> H2
- '2Cl- -2e- -> Cl2
- The two equations that can be written for an electrolysis reaction
- are called half equations.
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- @PlaySoundFile ADD20_02.wav
- @WaitForSoundToFinish
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- ADD20_05.wav
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- DD20_05.wav
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- cture ADD20_03.bmp
- @At 135,250
- Text 3
- @PlaySoundFile ADD20_03.wav
- @WaitForSoundToFinish
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- @PlaySoundFile ADD20_04.wav
- @PlaySoundFile ADD20_05.wav
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