topic 8 - chemical analysis Flashcards
1
Q
test for chlorine
A
bleaches damp litmus paper turning is white
2
Q
test for oxygen
A
contain. put a glowing splint. if present the splint will relight
3
Q
test for hydrogen
A
contain. put a lit tube at the end. should make a pop sound if present
4
Q
test for carbon dioxide
A
add it to limewater. should turn cloudy
5
Q
lithium
A
crimson
6
Q
sodium
A
yellow
7
Q
potassium
A
lilac
8
Q
calcium
A
orange- red
9
Q
copper
A
green
10
Q
calcium ion with sodium hydroxide
A
white
11
Q
copper ion with sodium hydroxide
A
blue
12
Q
iron(II) ion with sodium hydroxide
A
green
13
Q
iron(III) ion with sodium hydroxide
A
brown
14
Q
aluminium ion with sodium hydroxide
A
white then colourless
15
Q
magnesium ion with sodium hydroxide
A
white
16
Q
flame emission spectroscopy
A
heat ions up. electrons get excited. energy levels recorded as light. light shown in a line spectrum
