Calculate the oxidation number for carbon in CH4

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

Acar tire has a pressure of 2.38 atm at 15.2 c. if the pressure inside reached 4.08 atm, the tire will explode. how hot would the tire have to get for this to happen? report the temperature in degrees celsius.

What happens to the atomic radius when an elctron is lost