Tests for positive ions

?
  • Created by: Char
  • Created on: 19-05-13 15:48
What are the charges of the hydroxides of most metals?
2+ and 3+
1 of 9
What does make them?
Insoluble in water
2 of 9
So when sodium hydroxide is added to solutions of these ions what is formed?
A precipitate of the metal hydroxide forms
3 of 9
What do aluminium, magnesium and calcium form?
White precipitates
4 of 9
Which precipitate when added to sodium hydroxide solution dissolves?
Aluminium hydroxide
5 of 9
What colour is copper hydroxide?
Blue
6 of 9
Iron (II) hydroxide?
Green
7 of 9
Iron (III) hydroxide?
Brown
8 of 9
Fe (3+) + 3OH (-) =
Fe(OH)3
9 of 9

Other cards in this set

Card 2

Front

What does make them?

Back

Insoluble in water

Card 3

Front

So when sodium hydroxide is added to solutions of these ions what is formed?

Back

Preview of the front of card 3

Card 4

Front

What do aluminium, magnesium and calcium form?

Back

Preview of the front of card 4

Card 5

Front

Which precipitate when added to sodium hydroxide solution dissolves?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Testing and analysing substances resources »