Olm
a solution is formed by mixing 0.400 mol naoh
into 0.800 kg water. what is the best set up to find
molality?
o m =mol solute/kg solution
o m = mol solute/kg solvent
m= mol solvent/kg solute

i'm assuming that the correct answer is indeed the first one/ "a"..

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

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.