How many carbon dioxide molecules should be added to the products side to obey the law of conservation of matter? A)
four
B)
one
C)
three
D)
two

One CO2 (carbon dioxide) molecule should be added to the products side.

Explanation:

The balanced equation is CH4 + 2O2 --> CO2 + 2H2O.

You have to make sure that there are the same number of carbon, hydrogen, and oxygen atoms on both sides of the balanced equation to make sure it obeys the conservation of matter.

The balanced equation I provided for you shows 1 atom of carbon on both sides, 4 atoms of oxygen on both sides, and 4 atoms of hydrogen on both sides.

i dont think you are wrong for wanting to get even with someone who did you wrong.

(i'm an eye for an eye kind of person) but if this person hurt you in a sexual way, i dont suggest doing anything to him. he should be taken to the proper authorities, you could go to jail depending on what you do. if it was something small like your sibling took your spot on the couch, than yea, i would get even with him by taking one of his favorite snacks lol. but i dont suggest you doing anything illegal.