A mouse corpse is sealed in an airtight container the corpse is now a skeleton does the total mass of the container increase or decrease or stay the same

The answer is letter c

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

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

The state or quality of being humid.a quantity representing the amount of water vapor in the atmosphere or a gas.