Which is true about gasses?

As the temperature increases, their volume increases. Molecular motion increases because temperature is the average kinetic energy of the particles.

If you decrease the pressure, the volume will also increase. The particles of the gas will see an increase in molecular motion.

As the pressure increases, so does the volume. Molecular motion increases.

As the temperature goes down the pressure increases. The particles will see a decrease in molecular motion.

The answer is c) pyrite

C) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.

Van der waals forces are temporary electromagnetic forces established between uncharged atoms. some neutral molecules, when close together, can become temporarily “charged,” as electrons move around the atom. water is a polar molecule, the side of the molecule that the hydrogens bond to being more positive, and the opposite side bound to the lone pairs of electrons being more negative. this means that it participates in dipole-dipole interaction (non-polar exhibits dispersion forces), and it has the capacity for hydrogen bonding.

Elements that have complete valence shells are found in group 18, also known as the noble gases. these gases possess the stable octet, and are neon, radon, xenon, etc.