A scientist discovers a stack of newspapers is burned completely to ash in his laboratory. How does the resulting mass relate to the initial mass of the stack of newspapers?
A. one-fourth
B. double
C. one-half
D. equal
D. equal
The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. In this case, the stack of newspapers that is burned completely to ash will have the same total mass as the initial stack of newspapers.