First choice: PhH4 has a lower boiling point
Second: SiF4 higher
Third: CBr4 higher
It is beacuse the ions in the melted or aqueous ionic compound is mobile and can freely move through the fluid and conduct electricity.
<span>The answer to the question "what is the highest point of the transverse wave called" is a crest or peak. A transverse wave is a wave in which the medium of the wave vibrates at 90 degrees to the direction in which the wave is moving at. The lowest points are called the troughs. Examples of transverse waves are light and electromagnetic radiation.</span>
Determining on the temperature, ice could melt, water could freeze or evaporate. Just an example.