What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer. chemical name chemical formula chemical name chemical formula acetate c2h3o2– nitrite no2– carbonate co32– ammonium nh4+ hypocarbonite co2− cyanide cn– hydrogen carbonate (bicarbonate) hco3– hydroxide oh– chlorite clo2– peroxide o22– hypochlorite clo– phosphate po43– chlorate clo3– hydrogen phosphate hpo42– perchlorate clo4– dihydrogen phosphate h2po4– hydronium h3o+ sulfate so42– permanganate mno4– hydrogen sulfate (bisulfate) hso4– nitrate no3– sulfite so32– a. titanium oxide b. titanium(ii) oxide c. titanium(iii) oxide d. titanium trioxide

- Titanium(III)oxide

Explanations:- Titanium is a transition metal and we know that transition metals shows variable oxidation states. Charge for oxygen is -2. While writing the chemical formulas, we use criss cross means the charge of the anion becomes the subscript of the cation. Similarly, the charge of the cation becomes the subscript of the anion.

Here, it is important that we use the simple ratio of the charges for their subscripts. For example if the anion and cation has equal charges then no subscripts are used.

The given chemical formula is . From this formula, the subscript of Ti is 2 which is the charge of oxygen atom. Similarly the subscript of O is 3 which is the charge of titanium atom.

While writing names for the compounds containing transition metals then the charge of the transition metal is indicated by writing roman numeral next to the name of the metal.

When oxygen is bonded to the metal ions then these compounds are named as oxides. As the charge of Ti is +3, the name of the compound is Titanium(III)oxide.