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

e

explanation:

the answer is c. nacl

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.