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==Key Stage 3==
===Meaning===
A [[Metal Hydroxide]] is a [[Base|basic]] [[Metal Compound|metal compound]] made of one or more [[Metal]] [[atom]]s and one or more [[Hydroxide]]s that have the [[OxygenChemical Formula|formula]] [[atom]]sOH.
===About Metal Oxides===
: [[Metal OxideHydroxide]]s have a [[pH]] greater than [[Neutral (Chemistry)|7]]: Some All [[Metal Oxide]]s are [[insoluble]] [[solid]]s.: Some [[Metal OxideHydroxide]]s [[dissolve]] in [[water]] to make [[Metal Hydroxide]]s which are an [[alkali]]s.
===Examples===
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| style="height:20px; width:200px; text-align:center;" |'''Group 1 Metal OxidesHydroxides'''| style="height:20px; width:200px; text-align:center;" |'''Group 2 Metal OxidesHydroxides'''| style="height:20px; width:200px; text-align:center;" |'''Transition Metal OxidesHydroxides'''| style="height:20px; width:200px; text-align:center;" |'''Group 3 Metal OxidesHydroxides'''
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: Lithium OxideHydroxide: Li<sub>2</sub>OLiOH: Sodium OxideHydroxide: Na<sub>2</sub>ONaOH: Potassium OxideHydroxide: K<sub>2</sub>OKOH: Rubidium OxideHydroxide: Rb<sub>2</sub>ORbOH: Caesium OxideHydroxide: Cs<sub>2</sub>OCsOH
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: Beryllium OxideHydroxide: BeOBe[OH]<sub>2</sub>: Magnesium OxideHydroxide: MgOMg[OH]<sub>2</sub>: Calcium OxideHydroxide: CaOCa[OH]<sub>2</sub>: Strontium OxideHydroxide: SrOSr[OH]<sub>2</sub>: Barium OxideHydroxide: BaOBa[OH]<sub>2</sub>
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[[Chemical Forumla]]e may vary for transition metals.: Titanium OxideHydroxide: TiOTi[OH]<sub>24</sub>: Manganese OxideHydroxide: MnOMn[OH]<sub>2</sub>: Iron OxideHydroxide: Fe[OH]<sub>2</sub>O: Copper Hydroxide: Cu[OH]<sub>32</sub>: Copper Oxide: CuO: Zinc OxideHydroxide: ZnOZn[OH]<sub>2</sub>
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: Boron OxideHydroxide: B<sub>2</sub>O[OH]<sub>3</sub>: Aluminium OxideHydroxide: Al<sub>2</sub>O[OH]<sub>3</sub>: Gallium OxideHydroxide: Ga<sub>2</sub>O[OH]<sub>3</sub>: Indium OxideHydroxide: In<sub>2</sub>O[OH]<sub>3</sub>
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