Compound A is a solid with a melting point of 125°C,and compound B is a gas at 25°C and one atmosphere pressure.Based on these data,one would expect
A)both compounds to be covalent.
B)compound A to be ionic and compound B to be covalent.
C)compound A to be covalent and compound B to be ionic.
D)both compounds to be ionic.

Question

Quizplus · Accepted Answer

Ionic compounds tend to have high melting points due to the strong electrostatic forces between the ions. Covalent compounds, on the other hand, tend to have lower melting points because the forces between the molecules are weaker. Since compound A has a high melting point, it is likely to be ionic. Since compound B is a gas at room temperature, it is likely to be covalent.

Compound a Is a Solid with a Melting Point of 125°C,and