Is it physical or chemical? page 133. Physical Change. Any change in size, amount, shape, or state/phase of matter. nothing new is created Ex.) melting a block of ice, cutting a piece of paper in half. Chemical Change. substances change into new substances with different properties
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Ex.) melting a block of ice, cutting a piece of paper in half
Ex.) Digestion, spoiled food, explosives, and rust
Dissolving Salt/ http://www.youtube.com/watch?v=2WS5eFc8x1U
magnesium in HCl