chemistry test revision 7e Flashcards
1
Q
what is chromotography used for
A
drug testing or anylising foods
2
Q
claire needs to seperate mud from beads what should she use
A
sieve
3
Q
(2) why
A
the liquid will go through leading in only beads
4
Q
what do the colours make
A
violet or dark blue
5
Q
why do the dyes seperate
A
because the inks in the dyes are soluable in the water some faster some slower thus resulting in different places
6
Q
what is A
A
Evapaurating basin
7
Q
what happends at A
A
EVAPOURATES…..
8
Q
What happends at B
A
Condensation
9
Q
which is more soluable
A
sodium nitrate
10
Q
explain
A
it dissolves easier that potassium nitrate and is more soluable
11
Q
what would happen with sodium nitrate
A
it will all dissolve
12
Q
what would happen with pottasium
A
30g s will dissolve before the substance becomes saturated
13
Q
A
14
Q
A
15
Q
A
