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Identify Which are Physical Processes and Chemical Processes

Chemistry
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Indicate which of the following processes are physical processed and which are chemical processes A)Corrosion aluminum metal B) Cutting a diamond C)Burning gasoline D) Boiling water

Sep 2nd, 2014

Hello,

A chemical process will change the chemical composition of something, whereas physical only changes the arrangement of molecules of it, so:

A) Corrosion of aluminum metal- chemical: this is "rusting" caused by oxidation

B) Cutting a diamond-physical: there is no chemical change made here, just a separation of moecules

C) Burning gasoline-chemical: gasoline reacts with oxygen to form water and carbon dioxide

D) Boiling water-physical: this makes the molecules move faster and farther apart

Sep 2nd, 2014

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Sep 2nd, 2014
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Sep 2nd, 2014
Dec 9th, 2016
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