Question

Which of the following statements is true about the law of conservation of mass?

• A. In a chemical reaction, matter is not created or destroyed, but is conserved.
• B. In a chemical reaction, the final mass of the products is always greater than the starting mass of the reactants.
• C. In a chemical reaction, efforts should be made to preserve rare elements without changing them.
• D. Matter can be created and destroyed but does not change forms.

Answer 1

The correct option is A In a chemical reaction, matter is not created or destroyed, but is conserved.

In a chemical reaction, matter is not created or destroyed, but is conserved.