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  • what is the law of conservation of mass!?
  • the law of conservation of mass is matter that can not be destroyed or made?
  • correct,anyone have any examples other than bayleigh?
  • my idea is ..#2
  • my idea is...#1
  • #1
  • When popcorn “pops” is it a chemical or a physical change? It seems a bit tricky, but it’s a physical change. Let’s explore why. Popcorn “pops” when a tiny amount of water contained in the kernel is superheated and turns to steam. When enough pressure builds up inside the kernel, it ruptures, and some starch previously contained within the kernel fuses together as it cools to form a fluffy solid. Because the driving force behind this change is water being converted to steam (a change of state), and nothing chemically new is made, this is a physical change.
  • shredding paper because before you cut the paper you weigh it and then you shred it then weigh it again it equals the same mass.
  • #2
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