Respuesta :
The correct answer is D. Mass is conserved in both physical and chemical changes.
Answer: Option (d) is the correct answer.
Explanation:
According to law of conservation of mass, mass can neither be created nor it can be destroyed as it can only be transferred from one form to another.
This means that in a chemical reaction the mass of reactants is equal to the mass of products.
For example, [tex]2Na + Cl_{2} \rightarrow 2NaCl[/tex]
Total mass of reactants is as follows.
[tex](2 \times 23 + 2 \times 35)[/tex] g/mol
= 116 g/mol
Total mass of products is as follows.
2NaCl = [tex]2 \times (23 + 35)[/tex]
= (2 \times 58) g/mol
= 116 g/mol
Hence, we can conclude that mass is conserved in both physical and chemical changes.
