If a molecule is polar, what is true about the distribution of its valence electrons?

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !

the answer is 0.42 is that is an option. this question provides no info

yes the answer is total mass in unchanged   : )