An ionic compound between these two ions.
The cation Ca2+
The anion O2-
forming the molecular compound
CaO
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Calcium (Ca) and oxygen (O) combine ionically to produce the compound calcium oxide, with the formula CaO.
Calcium oxide has the chemical formula CaO.
CaO
a boner
2 nonmetals
lithium nitride, Li3N
cl-s-s-cl
Cr2O3
Li2s
Most likely, MX3
a boner
If the question is about Ni (without space), nickel metal, it can be NiO, but the reaction to form it is not very likely, Ni is a rather precious metal.
2 nonmetals
lithium nitride, Li3N
The active ingredient "paracetamol" is a compound but the tables is likely to be formed from this and a other ingredients so it is a mixture.
cl-s-s-cl
Cr2O3
Fe3Cl
no
There is not chemical compound with the formula AuCI. You most likely mean AuCl, with a lowercase L. This is gold I chloride.