positive ions Flashcards
1
Q
flame test for Sodium (Na+)
A
Yellow
2
Q
flame test for Potassium (K+)
A
Lilac
3
Q
flame test for Calcium (Ca2+)
A
Red
4
Q
flame test for Barium (Ba2+)
A
Green
5
Q
Add sodium hydroxide to a solution…
Reddish-Brown Precipitate
A
Iron = FE3+
6
Q
Add sodium hydroxide to a solution…
Light Blue Precipitate
A
Copper = Cu2+
7
Q
Add sodium hydroxide to a solution…
Light Green Precipitate which slowly turns Brown
“dirty” green
A
Iron = Fe2+
8
Q
Add sodium hydroxide to a solution…
White Precipitate made
Will either be… (3)
A
Aliminium = Al3+ Magnesium = Mg2+ Calcium = Ca2+
9
Q
Add sodium hydroxide to a solution…
White precipitate…
More solution…
Precipitate is insoluble…
A
Magnesium = Mg2+ Calcium = Ca2+
10
Q
Add sodium hydroxide to a solution…
White precipitate…
More solution…
Precipitate dissolves…
A
Aliminium = Al3+
11
Q
flame test for Lithium (Li+)
A
Crimson flame
