Explain why a balloon expands when taken to a higher elevation if the temperature remains constant? a) the decrease in atmospheric pressure allows the balloon wall to become more elastic. b) the decrease in atmospheric pressure relative to pressure inside the balloon causes it to expand. c) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it larger. d) the increase in atmospheric pressure forces the gases to push harder on the balloon increasing its size.

It seens like B would be the correct answer because the higher you go the less pressure is on the outside.  think of it like a vacuum chamber, when you suck the air out there is less pressure on the inside, therefor if you were to put a balloon inside a vacuum chamber it would have a similar effect to the balloon high in the atmosphere

Explanation:

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

i think that the answer is c