Question and answer
Which term refers to substances that cannot be broken down physically or chemically? A. alloy B. molecules C. atoms D. mixtures
Atoms refers to substances that cannot be broken down physically or chemically.
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Janet17|Points 12945|
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Asked 11/24/2014 3:11:32 PM
Updated 11/24/2014 3:28:23 PM
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This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/24/2014 3:28:23 PM]
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Which property justifies this statement? r(s + t) = rs + rt A. associative B. distributive C. symmetric D. transitive
Question
Not Answered
Updated 11/19/2014 10:39:52 PM
1 Answer/Comment
Distributive property justifies the statement r(s + t) = rs + rt.
Added 11/19/2014 10:39:52 PM
This answer has been confirmed as correct and helpful.
Translate the word phrase into a math expression. three times the sum of a number and four. A. 3n + 4 B. 3(n + 4) C. 3 + 4n D. 3 + (n + 4)
Weegy: The answer is 3n + 4n= 7 n (More)
Question
Updated 11/19/2014 10:37:42 PM
1 Answer/Comment
Three times the sum of a number and four is translated into 3(n + 4).
Added 11/19/2014 10:37:36 PM
This answer has been confirmed as correct and helpful.
Which was NOT an important factor in arranging elements into a periodic table? A. properties based on the number of outermost electrons B. atomic mass C. geographic location of first discovery D. atomic numbe
Question
Not Answered
Updated 10/30/2016 5:24:57 AM
1 Answer/Comment
Geographic location of first discovery, was NOT an important factor in arranging elements into a periodic table.
Added 10/30/2016 5:24:57 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [10/30/2016 5:28:28 AM]
hich particle of the atom has a negative charge? A. proton B. nucleus C. electron D. neutron
Question
Updated 11/25/2014 11:07:48 PM
1 Answer/Comment
The ELECTRON is the particle of the atom that has a negative charge.
Added 11/25/2014 11:07:48 PM
This answer has been confirmed as correct and helpful.
Which procedure did early chemists use to determine which substances were elements? A. They broke down mixtures by chemical means. B. They mixed several substances together and observed the results. C. They physically broke down the elements they discovered. D. They observed the substances that made up individual atoms.
Question
Not Answered
Updated 10/30/2016 5:25:58 AM
1 Answer/Comment
The procedure that early chemists used to determine the substances of the elements is: they broke down mixtures by chemical means.
Added 10/30/2016 5:25:58 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [10/30/2016 5:28:23 AM]
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