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SashulF [63]
3 years ago
6

The standard state of mercury

Chemistry
1 answer:
Bas_tet [7]3 years ago
3 0

Answer:

liquid

Explanation:

I hope this helps!!!!!!

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Fe(NO3)2 not sure how to get the oxidation numbers of all elements
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You must remember that oxidation number of hydrogen in acids is always +1, oxidation number of oxygen in oxides & acids is always -2... metals has always oxidation number on plus!

group NO3 comes from HNO3...and oxidation number of whole acid group is always on minus and equal to the amount of hydrogen atoms in this acid... so oxidation number of NO3 = -1

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Now we could count of oxidation number for nitrogen... we write HNO3 and start counting from right to left:
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