Topic 9.1 Flashcards
1
Q
lithium
A
red
2
Q
sodium
A
yellow
3
Q
potassium
A
lilac
4
Q
copper
A
green/ blue
5
Q
calsium
A
orange red
5
Q
calsium
A
orange red
6
Q
calsium
A
orange red
7
Q
falme test
A
use nicrome wire and dip into distilled water
8
Q
complicated test of metal ions
A
add sodium hydroxide solution
9
Q
al3+
A
first white to colourless
10
Q
Ca2+
A
white
11
Q
Cu2+
A
blue
12
Q
Fe2+
A
green
13
Q
Fe3+
A
brown
14
Q
test for ammonia
A
adding sodium hydroxide soltion test if ammonium gas is given off
-damp red litmas paper turns blue
also can be smelled but not good idea due to toxicness
15
Q
useing machines for identification
A
- accurate as no human error
- sensitive
- fast
16
Q
disposal of polymers landfill
A
- most are not biodegradable do bacteria doesnt decmpose it so stays in landfill for years
- hard to sepearte time
- valuable land is taken by these siets
17
Q
disposal of polymers combustion
A
- produces lots of energy
- toxic gases can be released
- co2 contibutes to glowbal warimg
