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12 Cards in this Set
- Front
- Back
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What is a loss of electrons called? |
Oxidation |
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What is a gain of electrons called? |
Reduction. |
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Reduction and oxidation happen .......... - hence the term .......... reactions. |
1. simultaneously 2. redox |
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What does an oxidising agent do? |
It accepts electrons and gets reduced. |
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What does a reducing agent do? |
It donates electrons and gets oxidised. |
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To work out whether something has been oxidised or reduced, you need to... |
...assign each element with an oxidation number before and after the reaction. |
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Metals in a redox reaction usually... |
...donate electrons to form positive ions - therefore having positive oxidation numbers. |
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Non-metals in a redox reaction usually... |
...accept electrons to form negative ions - therefore having negative oxidation numbers. |
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What happens to the metal and hydrogen atoms, in terms of redox, when a metal reacts with an acid. |
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Show the oxidising and reducing agents in the following reaction. |
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