Lus What volume of oxygen (in L) is produced
from the complete reaction of 147.1 g of
lead(II) nitrate at STP?
(Pb = 207.2 g/mol, N = 14.01 g/mol, O = 16.00 g/mol)
2Pb(NO3)2(g) → 2PbO(s) + 4NO2(g) + O2(g)
Hint: 1 mole of gas at STP occupies 22.4L

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