green and pink booklet practice q Flashcards
1
Q
what is copper sulphate
A
pure compound
2
Q
what is crude oil
A
mixture of compounds
3
Q
what is hydrogen
A
pure element
4
Q
sodium carbonate
A
Na2CO3
5
Q
lead (II) nitrate
A
Pb(NO3)2
6
Q
ammonium sulphate
A
(NH4)2SO4
7
Q
sulphur trioxide
A
S03
8
Q
balance
Al + O2 ~> Al2O3
A
4, 3,2
9
Q
hydrochloric acid + sodium hydroxide ~>
A
sodium chloride + water
10
Q
nitric acid + sodium carbonate ~>
A
sodium nitrate + water + co2
11
Q
lithium + water ~>
A
lithium hydroxide + hydrogen
12
Q
zinc + HCl ~>
A
zinc chloride + hydrogen
13
Q
strontium hydroxide
name :positive ion
: negative ion
: formula of compound
A
1- sr 2+
2- OH-
3- Sr(OH)2
