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What happens to the total mass of the chemicals involved in the reaction as the reaction proceeds?

Respuesta :

Ohmylexi
Because atoms are neither created nor destroyed in a chemical reaction, the total mass of products in a reaction must be the same as the total mass of the reactants. Example: The reaction between hydrogen and oxygen to form water is represented by the following equation. 

Explanation:

According to the law of conservation of mass, mass can neither be created nor it can be destroyed. It can only be transformed from one form to another.

For example, [tex]2Na + Cl_{2} \rightarrow 2NaCl[/tex]

Therefore, mass of reactants is as follows.

Mass of Na = 23 g/mol

Mass of Cl = 35 g/mol

Total mass of the reactants is (2 \times 23 g/mol) + (35 g/mol \times 2) = (46 + 70)g/mol = 116 g/mol

Mass of products is as follows.

2NaCl = 2 times (23 + 35) g/mol = 116 g/mol

Thus, we can conclude that the total mass of the chemicals involved in the reaction as the reaction proceeds gets transformed into other form, that is, into the products.