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is rust a physical change
No, Rust is a chemical change.
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Asked 12/18/2015 7:43:00 AM
Updated 12/18/2015 8:02:14 AM
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No, Rust is a chemical change.
Added 12/18/2015 8:02:14 AM
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Is gold a pure substance?
Weegy: Gold is a pure substance. TRUE. User: is milk a pure substance (More)
Question
Updated 12/18/2015 7:58:26 AM
1 Answer/Comment
Milk is not a pure substance.
Added 12/18/2015 7:55:27 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [12/18/2015 7:58:29 AM], Rated good by jeifunk
Which of the following are pure substances?
Weegy: Air is a pure substance. FALSE. User: hi Weegy: Hi, how may I help you? User: Which of the following are pure substances? Weegy: Air is a pure substance. FALSE. User: solutions Weegy: In chemistry, a solution is a homogeneous mixture composed of only one phase. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. User: compounds Weegy: In chemistry, a compound is a substance that results from a combination of two or more different chemical element s, [ in such a way that the atom s of the different elements are held together by chemical bonds that are difficult to break. ] User: Which of the following are pure substances? a)Compounds Weegy: Do you have a QUESTION, that Weegy can help you with today? can you specify ur question about PURE? User: Which of the following are pure substances? a)compounds b)solutions Weegy: A compound is a pure substance. User: thank you Weegy: Welcome.. :) User: Which of the following is NOT a pure substance? a)oxygen b)gold c)milk Weegy: Milk is NOT a pure substance. (More)
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Expert Answered
Asked 12/18/2015 7:31:45 AM
0 Answers/Comments
Rust forming on an iron fence is a physical change
Question
Updated 12/18/2015 8:03:25 AM
1 Answer/Comment
Rust forming on an iron fence is a physical change. FALSE.
Added 12/18/2015 8:03:25 AM
This answer has been confirmed as correct and helpful.
A substance that is made up of only one kind of atom is a
Weegy: It is constant and unique. User: A substance that is made up of only one kind of atom is a compound,homogenous mixture,element,soultion (More)
Question
Updated 10/7/2017 7:47:35 AM
1 Answer/Comment
A substance that is made up of only one kind of atom is an ELEMENT.
Added 10/7/2017 4:07:25 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [10/7/2017 7:47:36 AM]
What is a valence electron?
Question
Updated 12/18/2015 8:20:30 AM
1 Answer/Comment
In chemistry, a valence electron is an electron that is associated with an atom, and that can participate in the formation of a chemical bond; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.
Added 12/18/2015 8:20:19 AM
This answer has been confirmed as correct and helpful.
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