David observed properties of four different compounds, only one of which is an ionic compound. His observations are shown in the chart.
CompoundObservations
W
\begin{tabular}[t]{l}
Is a hard solid, melts
at 44° C, has a molecular structure
\\
\hline X &
Is a brittle solid, does not conduct
electricity in water, has a crystal
structure
\\
\hline Y &
Is a hard solid, conducts electricity,
has a molecular structure
\\
\hline Z & Is a brittle solid, melts at 801°C, has a crystal structure \\
\hline
\end{tabular}
Which is most likely the ionic compound?
AW
BX
CY
DZ
Compound | Observations |
W | \begin{tabular}[t]{l} Is a hard solid, melts |
at 44° C, has a molecular structure |
Is a brittle solid, does not conduct |
electricity in water, has a crystal |
structure |
Is a hard solid, conducts electricity, |
has a molecular structure |
AW
BX
CY
DZ