Question

At normal temperature, $H_{2}O$ is liquid while $H_{2}S$ is a gas. Why?

Answer 1

At normal temperature $H_{2}O$ is liquid while $H_{2}S$ is a gas. Because hydrogen forms H-bonds with 3 elements which are..Fluorine, Oxygen and Chlorine.In this case $H_{2}O$ forms hydrogen bonding and whereas $H_{2}S$ do not form hydrogen bonding.

So due to strong hydrogen bonds $H_{2}O$ is a liquid and $H_{2}S$ is not