Item 8 lonic compounds are compounds in which two or more ions are held together

Question

Item 8 lonic compounds are compounds in which two or more ions are held together by electrical attraction. The ion with a positive charge is called a cation, which is usually a metal or a polyatomic ion such as the ammonium ion (NH4+). The ion with a negative charge is called an anion, which is either a nonmetal or a polyatomic ion. lonic compounds containing a group 1A metal, group 2A metal, or aluminum cation contain metals that form only one ion. For ionic compounds that contain only group 1A, group 2A, or aluminum cations, the charge on the cation does not need to be included in the compound name since it does not vary. It is not easy to determine the charge of a transition element from the group number because it forms two or more positive ions. The sum of the charges on the anions must be used to determine the charge on the cation, and the charge must be indicated using Roman numerals in parentheses following the cation. Follow these general rules for naming ionic compounds: 1. Name the cation first according to its element name. If the cation is a transition metal, add the charge on the cation as a Roman numeral in parentheses following the cation name. 2. Name the anion second according to the first syllables of the element name followed by the ending ide. Part A Name the ionic compound MgCl2 Spell out the full name of the ionic compound. Submit Hints My Answers Give Up Review Part

Explanation / Answer

part A )

MgCl2 -------------------> magnesium chloride

part B)

FeBr3 --------------------> Iron (III) bromide

reason : Fe oxidation state = +3

part C)

CuNO3 -------------------> Copper (I) nitrate

reason : Cu oxidation state = +1

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