Next Co BrO3 2. Determine number of ions 1. Write symbols of elements Final Formula (Co+2)(BrO3-1)= 0 (BrO3)2 Next Ni C2H3O2 2. Determine number of ions 1. Write symbols of elements Final Formula (Ni+3)x(C2H3O2-1)y= 0 (C2H3O2)3 Next Li PO4 2. Determine number of ions 1. Cr 2 O 7 2-dichromate: Cr 2+ chromium(II) / chromous: Cr 3+ chromium(III) / chromic: CrO 4 2-chromate: Cs + cesium ion: Cu + copper(I) / cuprous: Cu 2+ copper(II) / cupric: F-fluoride: Fe 2+ iron(II) / ferrous: Fe 3+ iron(III) / ferric: H 2 PO 4-dihydrogen phosphate: H + hydrogen ion: H-hydride: HC 2 O 4-hydrogen oxalate (binoxalate) HCO 3 ...
Start studying Cations and Anions Ionic Compounds 2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. So, for Ca3(PO4)2, the element Ca appears first, meaning that it is the cation. The subscript 3 to its right means that there are three calcium cations in the formula: 3 Ca^2+ The complex ion PO4 appears last, meaning that it is the anion. The subscript 2 to its right means that there are two PO4^3- anions in the formula: 2 PO4^3-
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