Answer:
The statement best describes the reactants and products is :
A. Equal numbers of barium atoms are in the reactants as in the products.
Explanation:
The balanced equation is:
The law of conservation of Mass = It states that mass can neither be created nor destroyed in a chemical reaction.
Total mass of the reactant must be equal to total mass of the reactants.
Or
<u><em>Number of atoms of element in the reactant = number of elements in the product.</em></u>
Every equation in the universe must follow the law of conservation of Mass.
Now , consider the reaction
<u>Reactants ,</u> here are : Ba and O2
Number of Ba = 2
O = 2
Products = 2 BaO
Ba = 2x 1 = 2
O = 2 x1 = 2
Total number of Ba in both product and reactant = 2
Total number of O in both product and reactant = 2
So, Option A is correct.
Equal numbers of barium atoms are in the reactants as in the products.