Respuesta :
Answer : The correct option is, (D)
Explanation :
Balanced chemical reaction : According to the law of conservation of mass, the balanced reaction is a reaction in which the mass of the reactant side must be equal to the mass of product side.
[tex]AgBr(s)\rightarrow Ag(s)+Br_2(g)[/tex] (unbalanced reaction)
Mass of reactant, AgBr = 108 + 80 = 188 g
Mass of product, [tex]Ag+Br_2[/tex] = 108 + 2(80) = 268 g
This reaction is not balanced reaction because there is more mass represented on the right side of the equation than on the left side.
[tex]2AgBr(s)\rightarrow 2Ag(s)+Br(g)[/tex] (Balanced reaction)
Mass of reactant, 2 AgBr = 2(108 + 80) = 376 g
Mass of product, [tex]2Ag+Br_2[/tex] = 2(108) + 2(80) = 376 g
In the balanced reaction, the mass of reactant is equal to the mass of product.
So, from the given option, the option D is correct.