Which of the following statements is true?
A. The total mass of the system remains same in a chemical change
B. A chemical change is permanent and irreversible
C. A physical change is temporary and reversible
D. All of the above
Answer D) All of the above
Explanation:
According to the law of conservation of mass, mass is neither created nor destroyed in chemical reactions. So option A is true.
As we know that chemical change is permanent and we cannot convert the product into the reactant. While physical is temporary and reversible. Like turning of water into ice is a physical change.
Therefore, All the options are true.
