12 2. A hot air balloon has a volume of 3123 mº, and the temperature inside the balloon is 108.0 °C.
The pressure and outside temperature are 744 Torr and 20.0 °C, respectively. Assuming 28.9
g/mol, determine the amount of payload (kg) that could be lifted by this balloon if the mass of
the balloon is 144 kg. Hot air is the lifting medium in this case. A hot air balloon has a hole in
the bottom to heat the air. This means that both the pressure and the molar mass of air is the
same both inside and outside the balloon.
Py=nu

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

Compare and contrast physical changes with chemical changes.

If two objects at different te,peraure are in contact with each other what happens to their temperature