titanium (II) selenide = SeTi
V2Se5 is the formula for vanadium V selenide.
The formula for cobalt(II) selenide is CoSe. It is composed of one cobalt ion (Co^2+) and one selenide ion (Se^2-).
TiO is the formula of titanium (II) oxide
TiS for titanium sulfide (titanium(II) sulfide) and TiS2 for titanium disulfide (titanium(IV) sulfide)
The chemical formula for copper selenide is Cu2Se.
The formula for titanium(II) selenide is TiSe.
Almost certainly you are looking for Titanium(IV) Selenide, TiSe2, though the Titanium(III) compound, Ti2Se3 may exist as well. You should be more specific :)
V2Se5 is the formula for vanadium V selenide.
The formula for cobalt(II) selenide is CoSe. It is composed of one cobalt ion (Co^2+) and one selenide ion (Se^2-).
TiO is the formula of titanium (II) oxide
TiS for titanium sulfide (titanium(II) sulfide) and TiS2 for titanium disulfide (titanium(IV) sulfide)
The chemical formula for copper selenide is Cu2Se.
The empirical formula of phosphorus selenide is P2Se3.
The chemical formula for boron selenide is B2Se3.
The formula you provided, TiNO3₂, represents titanium nitrate.
Nickel has four oxidation states: Ni(I), Ni(II), Ni(III), and Ni(IV). Selenium is a group 6 non-metal...so it's oxidation state is -2. Therefore, you can have four possible formulas for nickel selenide: Ni2Se, NiSe, Ni2Se3, and NiSe2. However, the three most commonly found are: NiSe, Ni2Se3, and NiSe2.
Formula: CdSe