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Whats the differneence between HgCl and HgCl2 im confused lol

I got a sheet with this info on it and it said name the following , j
Reply 1
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Cities
16
Mercury (II) chloride and mercury (I) chloride ?

[although I think it's written Hg2Cl2]
Reply 2
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BJack
19
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. :s-smilie:
Reply 3
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...bored
OP
1
why is it mercury II , our teacher did nt explain it im confused,
Reply 4
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Cities
16
...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
Reply 5
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...bored
OP
1
no , but wat is the symobol for Copper (II)
Reply 6
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whizkid
symbol for copper is Cu 2+ (2+ is superscripted)
Reply 7
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...bored
OP
1
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)
Reply 8
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whizkid
copper (II)*
Reply 9
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whizkid
Oxygen has oxidation number 2-

so CuO +H2 >>>>> CuOH2
Reply 10
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...bored
OP
1
*******k chemistry im droppin it i think
...bored
*******k chemistry im droppin it i think


lol whats the matter?

CuO(s) + H2(g) → Cu(s) + H2O(l)

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