If you could help, that’d be awesome. Thank you! There is a picture of the problem :)

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

i would say b

explanation:

but i think i would need more information than that

i think its 100.

hope this !