The object of the game is to collect complete families. The player whose turn it is asks another
player for a specific card from the same family as a card that the player already has. If the
asked player has the card, they must give it to the requester and the requester can then ask any
player for another card. If the asked player does not have the card (or they do have the card
but the requester’s maths was wrong), it becomes the next persons go to ask for cards. Play
continues in this way until no families are separated among different players. The player with
the most cards wins.
Simplified (empirical) ratio:
Ratio by mass:
Fraction of total mass:
% of each element by mass:
Molecular
Formula
C3H6
C12H18
C6H12O6
C6H6
CaCO3
SiH4
Ratio
3:6
12:18
6:12:6
6:6
1:1:3
1:4
Empirical
formula
CH2
C2H3
CH2O
CH
CaCO3
SiH4
Simplified
Ratio
1:2
2:3
1:2:1
1:1
1:1:3
1:4
Ratio of
masses
12:2
6:1
24:3
8:1
12:2:16
6:1:8
12:1
40:12:48
10:3:12
28:4
7:1
Fraction of
total mass for
each element
12 2
:
14 14
6 1
:
7 7
24 3
:
27 27
8 1
:
9 9
12 2 16
: :
30 30 30
6 1 8
: :
15 15 15
12 1
:
13 13
40 12 48
: :
100 16 100
10 3 12
:
:
25 25 25
28 4
:
32 32
7 1
:
8 8
% by mass
Relative
molecular mass
(amu)
C: 85.7%
H: 14.3%
42
C: 88.9%
H: 11.1%
162
C:40%
H 6.7%
O: 53.3%
C: 92.3%
H: 7.7%
Ca: 40%
C: 12%
O: 48%
Si: 87.5%
H: 12.5%
180
78
100
32
Molecular
Formula
C2H8N2
CH4
C2H6O2
C2H6
C10H8
C2H2O4
Ratio
2:6:2
1:4
2:6:2
2:6
10:8
2:2:4
Empirical
formula
CH4N
CH4
CH3O
CH3
C5H4
CHO2
Simplified
Ratio
1:4:1
1:4
1:3:1
1:3
5:4
1:1:2
Ratio of
masses
12:4:14
6:2:7
12:4
3:1
12:3:16
12:3
4:1
60:4
15:1
12:1:32
Fraction of
total mass for
each element
% by mass
12 4 14
: :
30 30 30
C:40%
H: 13.3%
N: 46.7%
6 2 7
: :
15 15 15
12 4
:
16 16
3 1
:
4 4
C: 75%
H: 25%
Relative
molecular mass
(amu)
60
16
12 3 16
: :
31 31 31
C: 38.7%
H: 9.7%
O: 51.6%
12 3
:
15 15
C: 80%
H: 20%
30
4 1
:
5 5
60 4
:
64 64
15 1
:
16 16
C: 93.75%
H: 6.25%
128
12 1 32
: :
45 45 45
C: 26.7%
H: 2.2%
O: 71.1%
62
90