Complete the coordination sphere rule

Exercise and reference answers

Missing parts

1. Answer

   square brackets

   Choices

   1. square brackets
   2. round brackets
   3. curly braces

2. Answer

   counter ions

   Choices

   1. counter ions
   2. ligands
   3. chelates

3. Answer

   K⁺

   Choices

   1. K⁺
   2. CN⁻
   3. Fe²⁺

Complete the statement

The central atom and its ligands are enclosed in {0} and called the coordination sphere. The ionisable groups written outside are called {1}. In K₄[Fe(CN)₆] the counter ion is {2}.

Explanation