3 years ago

HELPP

Chemistry

1 answer:

Natasha_Volkova [10]3 years ago

4 0

I’m pretty sure it’s D.increases the activation energy for a reaction.

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What is the charge on Na and why is it called a cation?

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What is the formula for aluminum nitrite ?

Marta_Voda [28]

<u>Answer:</u> The chemical formula for aluminium nitrite is $Al(NO_2)_3$

<u>Explanation:</u>

The given compound is formed by the combination of aluminium and nitrite ions. This is an ionic compound.

Aluminium is the 13th element of periodic table having electronic configuration of $[Ne]3s^23p^1$ .

To form $Al^{3+}$ ion, this element will loose 3 electrons.

Nitrite ion is a polyatomic ion having chemical formula of $NO_2^{-}$

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

So, the chemical formula for aluminium nitrite is $Al(NO_2)_3$