Chemistry — Tests for Ions

Flame tests and precipitate tests for ions.

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digraph IonTests {
  rankdir=LR;
  node [shape=box, style=rounded];
  Flame [label="Flame test"];
  Flame -> "Li+ : red";
  Flame -> "Na+ : yellow";
  Flame -> "K+ : lilac";
  Flame -> "Ca2+ : orange-red";
  NaOH [label="Add NaOH"];
  NaOH -> "Cu2+ : blue ppt";
  NaOH -> "Fe2+ : green ppt";
  NaOH -> "Fe3+ : brown ppt";
}