ali.b
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Why is copper oxide insoluble in water?
Is copper Oxide ionically bonded?
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Jimbo Jones
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ionic bonding is the bonding of ions
ions are atoms that have charges
so if you have bonding between metals and non-metals, you'll get a charged bond because one receives a negative charge (the electron) and the other gets its negativity taken away (via its election being transferred to the non-metal)
so ionic bonding is the bonding between metals and non-metals (i.e. copper oxide vis-a-vis copper and oxygen)

as for why it is insoluble in water, I can't even remember.
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ali.b
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Thank you!
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mariejuana
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it's insoluble because it's not polar
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