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→Preventing and Reducing Corrosion
===Preventing and Reducing Corrosion===
: [[Corrosion]] can be prevented by making a physical barrier between the [[object]] and the [[chemical]]s in the environment. This can be done by painting or [[electroplating]].
{| class="wikitable"
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|[[File:RustingPipe.png|center|200px]]
|[[File:Electroplating.png|center|200px]]
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| style="height:20px; width:200px; text-align:center;" |This [[Iron]] pipe was painted to prevent [[corrosion]], but where the paint has chipped away, the [[Iron]] has [[rusting|rusted]].
| style="height:20px; width:200px; text-align:center;" |[[Electroplating]] can cover a [[Reactivity Series|reactive]] [[metal]] with a less [[Reactivity Series|reactive]] [[metal]] such as [[Copper]] create a physical barrier between the [[object]] and the environment.
|}
: [[Corrosion]] of a [[metal]] [[object]] can also be prevented using a [[Sacrificial Anode]] which is a [[metal]] more [[Reactivity Series|reactive]] [[metal]] placed in [[Electrical Contact|electrical contact]] with the [[object]]. This prevents [[Oxidation]] of the [[object]]
{| class="wikitable"
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|[[File:SacrificialAnode.png|center|300px]]
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| style="height:20px; width:300px; text-align:center;" |A [[Sacrifical Anode]] made of [[Zinc]] has been attached to the [[Iron]] hull of a boat.
|}