Chemical properties-and-changes

Chemical Properties and Changes

Do you remember what Physical Properties are??? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chemical Properties determine how a substance interacts with other substances Some examples are: *flammability *reactivity to an acid *reactivity to water

After a PHYSICAL CHANGE, the appearance of the substance may be different but it is still the same substance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

After a CHEMICAL CHANGE, a new substance is produced with NEW PROPERTIES. These properties are different from the original substance! ,[object Object],[object Object],[object Object],[object Object],[object Object]

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Physical or Chemical??? Use the A-F cards to separate the Physical Changes from the Chemical Changes! A. You cut a sheet of aluminum foil in half B. Your friend melts some butter for her popcorn C. Your Mom lights a candle in a dark room D. Rubbing alcohol evaporates from your hand E. Hydrogen peroxide bubbles when you put it on a cut on your leg F. You leave the milk on the counter all night and discover it has soured in the morning

Chemical properties-and-changes

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