Electrochemistry 12
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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show | The ionic charge of an element.
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What is the oxidation number of a pure element? | show 🗑
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show | +1 except in a metal hydride then it is -1
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show | -2 except with OF2 and H2O2
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What must the ON add to? | show 🗑
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If two elements both have a + or - charge: | show 🗑
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show | A combination of 2 half-reactions
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show | Oxidation and Reduction
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show | Loosing Electrons is Oxidation
Gaining Electrons is Reduction
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show | 1. Half Reaction Method
2. Oxidation Number Method
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show | 1. break redox into oxidation and reduction
2. Balance:
non hydrogen/oxygen
oxygen using H2O
hydrogen using H+
charge using e-
3. find LCM for e- and multiply
4. cross out spectators
5. add
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show | 1. assign ON to each element
2. find 2 elements with changed ON and which reaction each of the two was a part of
3. balance elements that underwent redox(multiply by LCM)
4. find LCM for e-
5. balance e-
6. balance the rest of the reaction
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show | add OH-
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How do you create an acidic reaction? | show 🗑
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What is a galvanic cell/voltaic cell? | show 🗑
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show | Redox reaction
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What is an anode? | show 🗑
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show | Positively charged electrode where reduction occurs
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In diagrams where is the anode located? | show 🗑
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show | conductor of electricity that takes it into and out of the cell(battery)
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What is an electrolyte and its use? | show 🗑
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What is a spontaneous reaction? | show 🗑
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What is the oxidization agent? | show 🗑
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What is the reduction agent? | show 🗑
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What is a disproportionation reaction | show 🗑
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show | oxidation increased ON
reduction decreased ON
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