390,433 views
11 votes
11 votes
Mass and energy are conserved Question 11 options: A) only in chemical changes. B) always in physical changes and sometimes in chemical changes. C) only in physical changes. D) in chemical changes and physical changes.

User Deep Kakkar
by
2.7k points

1 Answer

20 votes
20 votes

Answer:

I think b always in physical changes and sometimes in chemical changes

User Vikram Palakurthi
by
2.5k points