1helpmeplease 1helpmeplease

Today at 2:07 AM
Chemistry

Answered

2. Which types of changes observe the law of
conservation of mass?
A. only changes of state
B. only physical changes
C. only chemical changes
D. physical changes and chemical changes

Answer :

camillehanson camillehanson

Today at 2:12 AM

D) physical and chemical changes

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