How many moles of propane (C3H8) are in a 7.00 L tank at 20.0 c and 5.45 atm of pressure?

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

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

Find the mass, in grams, of 5.00*10^23 molecules of f2