A chemical change is a change in the ______ of a substance. a. composition c. temperature b. appearance d. melting point

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A chemical change is a change in the COMPOSTION of a substance.

andrewpallarca|Points 37247|

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Asked 5/28/2014 8:16:49 PM

Updated 5/28/2014 11:04:43 PM

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Confirmed by jeifunk [5/28/2014 11:04:43 PM]

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Liquids tend to contract when heated.

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Not Answered

Updated 5/29/2014 6:09:49 AM

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paral

Liquids tend to contract when heated.
False.

Added 5/29/2014 6:09:49 AM

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The particles in a gas cannot be compressed into a smaller volume.

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Updated 5/29/2014 6:13:13 AM

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paral

The particles in a gas cannot be compressed into a smaller volume.
False.

Added 5/29/2014 6:13:13 AM

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A physical change differs from a chemical change in that waste products are formed through chemical changes.

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Updated 5/29/2014 6:44:37 AM

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paral

A physical change differs from a chemical change in that waste products are formed through chemical changes.
True, but not in all cases as not all chemical changes have waste products.

Added 5/29/2014 6:44:37 AM

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A change in color during a reaction is often a sign that a chemical change has occurred

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Updated 5/29/2014 6:48:53 AM

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paral

A change in color during a reaction is often a sign that a chemical change has occurred.
True.

Added 5/29/2014 6:48:53 AM

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Indications of a chemical change include light, heat, and gas production.

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Updated 5/28/2014 8:33:21 PM

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jeifunk

TRUE. Indications of a chemical change include light, heat, and gas production.

Added 5/28/2014 8:33:21 PM

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