Which rule for assigning oxidation numbers is correct? Hydrogen is usually â€""1. Oxygen is usually â€""2. A pure group 1 element is 1. A monatomic ion is 0.

2b2t

explanation:

2b2t

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but