A | B |
chemical properties | words that describe the ability of a substance to change into new and different matter |
signs of chemical changes | color, odor, heat, fizzing, foaming, sound or light |
chemical change | a change that occurs when substances change into something new and different |
characteristic properties | properties that are always the same no matter what the size of the sample |
density | the amount of mass in a volume |
solubility | the ability of a substance to dissolve in water |
flammability | the ability of a substance to burn |
reactivity | the ability of a substance to undergo a chemical change |
boiling point | the temperature at which something boils |
melting point | the temperature at which something melts |
uses of characteristic properties | identify unknown substances |
composition | the type of matter that makes up the object and its arrangement |
electrolysis | using electricity to break apart water molecules |
chemical changes examples | burning leaves/rotting log |
physical change examples | melting snow/dissolving sugar |