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Whats the differneence between HgCl and HgCl2 im confused lol

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    I got a sheet with this info on it and it said name the following , j
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    Mercury (II) chloride and mercury (I) chloride ?

    [although I think it's written Hg2Cl2]
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    Well they're both mercury chloride. The first is mercury (I) chloride, while the second is mercury (II) chloride, mercury dichloride or mercuric chloride. I don't know anything about their chemical or physical properties.
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    why is it mercury II , our teacher did nt explain it im confused,
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    (Original post by ...bored)
    why is it mercury II , our teacher did nt explain it im confused,
    HgCl2 - oxidation number of 2+ so II

    Hg2Cl2 - oxidation number of 1+ so I
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    no , but wat is the symobol for Copper (II)
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    symbol for copper is Cu 2+ (2+ is superscripted)
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    what is the answer to this please: try writing equations for these reactions: Hydrogen + copper (II) oxide ->>>>> copper + water. Is it CuO2 + H >>>> Cu + water ( forget about balancing for now)
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    copper (II)*
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    Oxygen has oxidation number 2-

    so CuO +H2 >>>>> CuOH2
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    *******k chemistry im droppin it i think
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    (Original post by ...bored)
    *******k chemistry im droppin it i think
    lol whats the matter?

    CuO(s) + H2(g) → Cu(s) + H2O(l)

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