Substance Melting point
solubility
Conductivity when dissolved
Conductivity as solid
high
A
1000
DO
N/A
В
20°C
no
none
N/A
С
50°C
ye
none
poor
D
2000
none
high
10 match the substance with its decription or classification
metal
nonpolar covlent (molecular)
А
T
polar covalent (molecular)
-
ionic