Chemical Tests Flashcards
Anion
A negatively charged ion
Cation
A positively charged ion
Flame test
A method of identifying a metal cation by the colour it produces in a non-luminous Bunsen flame
Ion
An electronically charged atom or group of atoms
Litmus
An acid alkali indicator that is red in acidic solutions and blue in alkaline solutions
Precipitate
An insoluble solid formed from a reaction taking place in an aqueous solution
Silver nitrate test
A method of identifying a halide ion by the colour of the precipitate it produces when reacted with silver nitrate solution
Sodium hydroxide test
A method of identifying a metal cation by the colour of the precipitative it produces when reacted with sodium hydroxide solution