What is the chemical formula for nickel (iii) oxide? nio ni3o nio3 ni2o3

Hello!

The chemical formula for Nickel (III) Oxide is Ni₂O₃

In chemical nomenclature, we read from left to right:

Then we combine the two ions as follows, multiplying each one by the charge of the other to neutralize the charges:

2Ni⁺³ + 3O⁻² → Ni₂O₃

So, the chemical formula is Ni₂O₃

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Putting this here just because the answer seems to have some blurry/unreadable parts, I do not take credit for solving this question... The answer is Ni2O3

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

i think is conclusions.i think so