Test for Cations Flashcards
1
Q
What colours do lithium, sodium, potassium, calcium and copper ions give when burnt?
A
Lithium - Crimson Sodium - Yellow Potassium - Lilac Calcium - Orange red Copper - Green
2
Q
What do you add to a metal hydroxide to find out what the metal is?
A
Sodium hydroxide
3
Q
What are the colours of the precipitates for the metals calcium, copper(II), iron(II), iron(III), aluminium, and magnesium?
A
Calcium - White Copper(II) - Blue Iron(II) - Green Iron(III) - Brown Aluminium - White but dissolves in excess NaOH Magnesium - White
