UNIT 2 - Compounds with a Multivalent Metal

Question 1

Multivalent metal

Answer 1

a metal that can form two or more different positive ions
-multi = many
-valent = refers to capacity to bond
ex. An iron ion can have a charge of 3+ or 2+
-the periodic table lists the dif possible ion charges FOR EACH METAL, with the most common ion charge FIRST

Question 2

The Rules for writing the NAME of COMPOUNDS CONTAINING A MULTIVALENT METAL

Answer 2

1. Name the metal ion with the ion charge indicated in brackets and the nonmetal ion
2. Below them, write the metal and nonmetal elements again, without the ion charges
3. Flip-Flop & Drop
4. Simplify the subscripts
   Ex. Manganese (IV) Oxide
   a) Mn4+ O2- = b) Mn O = c) Mn4O2 - Mn2O

Question 3

The rules for writing the FORMULAS of COMPOUNDS CONTAINING A MULTIVALENT METAL

Answer 3

1. Name the metal ion (name in the periodic table)
2. Determine the charge of the metal (reverse flip-flop & drop) Ex. Cu2O -> Cu1+O2-
3. Write the charge of the metal ion in Roman numerals in brackets after the metal
4. Name the nonmetal ion by ending the element name (from periodic table) with the suffix “ide”
5. Do a QUALITY check to determine that the chagre is possible

Question 4

Roman numerals

Answer 4

I, II, III, IV, V, VI, VII, VIII