Term
| What particles are transferred in redox? |
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Definition
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Term
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Definition
| when a substance loses electrons |
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Term
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Definition
| when a substance gains electrons |
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Term
| Where does oxidation occur? |
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Definition
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Term
| Where does reduction occur? |
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Definition
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Term
| What is the oxidation number? |
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Definition
| a possible charge the atom could have |
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Term
| In terms of energy transfer, what does a voltaic cell do? |
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Definition
| convert chemical energy to electrical energy |
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Term
| In terms of ions, what does a salt bridge do? |
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Definition
| allows ions to flow to the anode and cathode so charge does not build up |
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Term
| In an oxidation half-reaction, where are the electrons? |
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Definition
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Term
| In an reduction half-reaction, where are the electrons? |
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Definition
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Term
| What does LEO GER help us remember? |
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Definition
lose electrons oxidation
gain electrons reduction |
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Term
| What does AN OX and RED CAT help us remember? |
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Definition
anode oxidation
reduction cathode |
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Term
| How do electrons flow in a cell? |
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Definition
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Term
| How is an electrolytic cell different from a voltaic cell? |
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Definition
| Voltaic cells have salt bridges, and electrolytic cells require a power source like a battery. |
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Term
| In terms of energy transfer, what does an electrolytic cell do? |
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Definition
| convert electrical energy to chemical energy |
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Term
| What are two examples of electrolytic cells? |
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Definition
plating expensive metals onto cheap metals
electrolysis of water |
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Term
| How can you identify that a reaction is a redox reaction? |
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Definition
change in oxidation number
also, all single replacement and combustion are redox |
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Term
| What must be equal in all redox reactions? |
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Definition
| electrons lost must equal electrons gained |
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