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What is the formula unit of sodium nitride? (1 point) NaN Na2N Na3N NaN3
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Updated 140 days ago|10/14/2014 5:29:58 PM
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Na3N is the formula unit of sodium nitride.

Added 140 days ago|10/14/2014 5:29:58 PM
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Chemical reactions _____. (1 point) occur only in living organisms create and destroy atoms only occur outside living organisms produce new substances
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Updated 1/18/2013 1:56:09 AM
1 Answer/Comment
Chemical reactions produce new substances.
Added 1/18/2013 1:56:09 AM
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The products of a combustion reaction do NOT include ____. (1 point) water carbon dioxide carbon monoxide hydrogen
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Updated 1/18/2013 1:48:18 AM
1 Answer/Comment
The products of a combustion reaction do NOT include Hydrogen.
Added 1/18/2013 1:48:18 AM
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Chemical equations must be balanced to satisfy ____. (1 point) the law of definite proportions the law of multiple proportions the law of conservation of mass Avogadro's principle
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Updated 1/18/2013 1:44:58 AM
1 Answer/Comment
Chemical equations must be balanced to satisfy the law of conservation of mass.
Added 1/18/2013 1:44:58 AM
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