Predict which compound would have the highest melting point and explain why. A)
CO - It is polar and has dipole-dipole forces.
B)
CO2 - It has really strong dispersion forces.
SiO2 - It consists of a covalent network.
D)
P₂O5
- It has strong dipole-dipole forces.

Fill in the blanks for the following statements: the rms speed of the molecules in a sample of h2 gas at 300 k will be times larger than the rms speed of o2 molecules at the same temperature, and the ratio µrms (h2) / µrms (o2) with increasing temperature. a not enough information is given to answer this question b sixteen, will not change c four, will not change d four, will increase e sixteen, will decrease