How does the law of the conversation of mass apply to chemical reactions A.) atoms cannot be rearranged in a chemical reaction

B.)atoms can be lost in a chemical reaction but not added

C.)atoms cannot be added or lost in a chemical reaction

D.) atoms can be replaced with other types of atoms​

u i forgot the answer?

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

elements make up everything, and they combine to make compounds.

the answer is c

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.