Chemical tests Flashcards
1
Q
Ammonia test + result
A
Damp red litmus paper
- Turns blue
2
Q
ammonia appereance of test
A
colorless, pungent smell
3
Q
carbon dioxide test and results
A
bubble though lime water
- lime water turns milky/ cloudy
4
Q
C02 appereance test
A
colorless and odorless
5
Q
chlorine test and result
A
damp blue litmus paper
- paper is bleached
6
Q
chlorine apperence in test
A
pale green, choking smell
7
Q
hydrogen test and result
A
hold a lighted splint in mouth of test tube
- burns with a squeaky pop sound
8
Q
hydrogen appearance test
A
colourless and odourless
9
Q
oxygen test and result
A
hold a glowing splint
-splint relights
9
Q
oxygen appearance test
A
colourless and odourless
10
Q
why is flame test neccasary
A
identify metal ions by the color of flame they produce
11
Q
how to carry out a flame test
A
- dip loop of an unreactive wire (eg. nichrome) in conc. acid
- hold it in blue flame of bunsen burner until no color change
- dip loop into solid sample and place it on the edge of the blue bunsen flame
12
Q
Li+
A
red
13
Q
Na+
A
yellow
14
Q
K+
A
lilac
