Given names, formulas are to be written; given formulas, names are to be written. Co 2 O 3 , Na 2 SO 3 , mercury(II) iodide, aluminium hydroxide Concept introduction: The chemical compounds are made up of polyatomic ions and the ratio of positive to negative ions present in the substance is expressed as formula of ionic compound. Some elements form monoatomic ions having different charges and to differentiate the two ions, size of the charge of ions is included when naming the ion. Usually, the number of each kind of atom which makes up the particle generally called as the composition, is denoted by the chemical formula.

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Chapter 6, Problem 72E

Interpretation Introduction

Interpretation:

Given names, formulas are to be written; given formulas, names are to be written.

Co₂O₃, Na₂SO₃, mercury(II) iodide, aluminium hydroxide

Concept introduction:

The chemical compounds are made up of polyatomic ions and the ratio of positive to negative ions present in the substance is expressed as formula of ionic compound. Some elements form monoatomic ions having different charges and to differentiate the two ions, size of the charge of ions is included when naming the ion. Usually, the number of each kind of atom which makes up the particle generally called as the composition, is denoted by the chemical formula.

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