Find the number of valence electrons, Lewis structure, Shape, hybridization, number of sigma and pi bonds, bond polarity and molecular polarity for the following molecules. H2O
NH3
CH4
CH2F2
CO
CO2
HCN
SO2
SO3

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Convert .347 kilometers to miles show your work

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?