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Physical vs. Chemica
Question | Answer |
---|---|
You add sugar to lemonade | physical change (dissolving) |
Boiling water | physical change |
Frying an egg | chemical change |
rust forming on metal | chemical change (reacting) |
fruit rotting | chemical change |
removing salt from water by evaporation | physical change |
is shiny and silvery | physical property |
melts easily | physical property |
has a density of 2.4 g/mL | physical property |
reacts with water | chemical property |
is red | physical property |
does not react with hydrogen | chemical property |
burning wood into ash | chemical change |
digesting food | chemical change |
reactivity | chemical property |
a substance was non flammable | chemical property |
a substance was non soluble (didn't dissolve) | physical property |
a new substance is formed | chemical change |
clues of a chemical change | temperature change, change in odor, color change, gas forming (bubbles) |
can be reversed | physical change |
changes an objects shape or size, but not chemical composition | physical change |