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Sulphate
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==Key Stage 4==
===Meaning===
[[Sulphate]] is a [[Negative Ion|negative ion]] with a relative [[Electrical Charge|charge]] of -2 and a [[Chemical Formula|chemical formula]] of SO<sub>4</sub><sup>-2</sup>which combine with [[Positive Ion|positive ions]] to form [[salt]]s.
===About Sulphate===