G 1 AND 7 Flashcards
(4 cards)
1
Q
Colours and physical states of the halogens at room temperature
A
Fluorine is a poisonous yellow coloured gas and is the most reactive halogen
Chlorine is a green coloured gas.
Bromine is a red-brown volatile liquid which is also poisonous.
Iodine is a grey coloured solid with purple vapours.
2
Q
Displacement can cause a color change in halogens
what are the starting colors
A
Halide salts (e.g. KCl, KBr, KI) are colourless
Bromine water is orange
Chlorine water is colourless
Iodine water is brown
3
Q
ions of opposite charges are attracted by…
A
electrostatic forces
4
Q
A
