Question
A white, powdery substance melts at 996°C. It does not conduct electricity as a solid but is highly conductive when dissolved in water.
Which of the following could be the identity of the solid?
A.
SiC(s)
B.
C12H22O11(s)
C.
LiBr(s)
D.
In(s)
Which of the following could be the identity of the solid?
A.
SiC(s)
B.
C12H22O11(s)
C.
LiBr(s)
D.
In(s)
Answers
DrBob222
I would go with LiBr.
SiC is carborundum and isn't soluble in water. It does not conduct electricity.
C12H22O11 is sugar. You know a solution of sugar does not conduct electricity.
LiBr is a white powder. A solution of LiBr is highly conductive.
In is a metal and doesn't dissolve in water.
SiC is carborundum and isn't soluble in water. It does not conduct electricity.
C12H22O11 is sugar. You know a solution of sugar does not conduct electricity.
LiBr is a white powder. A solution of LiBr is highly conductive.
In is a metal and doesn't dissolve in water.