Question

why are chemical equations balanced?A. To show that the total mass can only change when the total number of moles of substances changes B. To show that the total number of moles of substances does not changeC. To show that the mass of atoms in the products must equal the mass of atoms in the reactants D. To show that the number and type of each atom does not change

Answer 1

In Chemistry, we always have to balance the equations, in many topics within the subject of Chemistry, it is required to do that, this is because we have to account for every atom in the reaction, on both sides, reactant and product, the same number of atoms that are on the reactants side must be on the products side. Therefore, the best answer for this question will be letter D