How is an image formed by a plane mirror?
o light bounces off of the mirror and then appears to come from in front of the mirror.
light passes through the mirror and then appears to come from behind the mirror.
o light passes through the mirror and then appears to come from in front of the mirror,
o light bounces off of the mirror and then appears to come from behind the mirror.

the answer is b. dilution

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!

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~ trueboss72

more infor would

a lot