Which is a molecule? A. Ne B. NaCl C. trail mix D. graphene

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Asked 11/16/2015 6:39:52 PM

Updated 11/17/2015 4:29:09 AM

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Edited by jeifunk [11/17/2015 4:28:46 AM], Edited by jeifunk [11/17/2015 4:29:08 AM], Confirmed by jeifunk [11/17/2015 4:29:09 AM]

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User: Which is a molecule? A. Ne B. NaCl C. trail mix D. graphene

Weegy: NaCl is a molecule.

Erry12|Points 50|

User: Which is the most accurate description of compounds? A. They are not pure substances. B. They are made of only 1 type of atom. C. They are the basic building blocks of matter. D. They are made up of atoms of 2 or more elements that are chemically combined.

Weegy: They are made up of atoms of 2 or more elements that are chemically combined. This is the most accurate description of compounds.

User: Which is the most accurate description of compounds? A. They are formed by elements that join in any given mass ratio. B. They have the same properties as the elements that make them up. C. They have a unique set of properties that can be used as identifiers. D. They cannot be broken down into the elements that form them through chemical changes. \

Weegy: They have a unique set of properties that can be used as identifiers. This statement is the most accurate description of compounds.
Expert answered|Janet17|Points 19821|

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Asked 11/16/2015 6:39:52 PM

Updated 11/17/2015 4:29:09 AM

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This answer has been confirmed as correct and helpful.

Edited by jeifunk [11/17/2015 4:28:46 AM], Edited by jeifunk [11/17/2015 4:29:08 AM], Confirmed by jeifunk [11/17/2015 4:29:09 AM]

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The book Kathy is reading is 540 pages long. So far, she has read 405 pages. What percent of the book does she have left to read? A. 20% B. 25% C. 75% D. 80%

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Updated 11/13/2015 1:50:12 AM

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jerry06

The book Kathy is reading is 540 pages long. So far, she has read 405 pages. She have left 25% to read.
540 - 405 = 135
135/540 = x/100; 540x = 13500; x = 13500/540; x = 25

Added 11/13/2015 1:50:12 AM

This answer has been confirmed as correct and helpful.

Confirmed by Andrew. [11/13/2015 1:54:26 AM]

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