What is the correct name of the compound with the formula #NH_4NO_2#?
Ammonium nitrite
The nitrogen in the ammonium-ion plays a completely different role because nitrogen, in its acid form, has two oxidation numbers: the lower (+3) gets the name "nitrite" (nitrous acid), and the higher (+5) is reserved for "nitrate" (like in nitric acid).
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Ammonium nitrite is the proper name for the compound with the formula NH₄NO₂.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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