Question

Water with molecular mass of 18g is a liquid at room temperature while hydrogen sulphide with a moleculer mass of 34g is a gas at room temperature. Explain

Answer 1

Solution: Despite the fact that the water has a smaller molecular weight (almost twice) and the same type of chemical bond, it is a liquid at room temperature. The main reason is the presence of hydrogen bonds between water modules. That’s why it is a liquid at room temperature.
Answer: Presence of hydrogen bonds between water modules.