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Liquid alcohol will change to vapor when its temperature reaches the _______ point. A. fusing B. freezing C. melting D. boiling
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Asked 12/11/2017 1:35:14 PM
Updated 12/11/2017 1:56:51 PM
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User: Liquid alcohol will change to vapor when its temperature reaches the _______ point. A. fusing B. freezing C. melting D. boiling

Weegy: Liquid alcohol will change to vapor when its temperature reaches the BOILING point.
Expert answered|Score 1|migzptz|Points 7598|

User: A magnifying glass is an example of a _______ lens. A. converging B. plano-convex C. plano-concave D. double-concave

Weegy: A magnifying glass is an example of a plano-convex lens.
Expert answered|Score 1|myjaiel|Points 43|

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Asked 12/11/2017 1:35:14 PM
Updated 12/11/2017 1:56:51 PM
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Which of the following is true about semi-conductors: A. A material is classified as a semiconductor if its resistance to the flow of electric current is too low to permit it to be called a conductor B. Gold and silver are important semiconductors C. Neither free electrons nor holes are considered charge carriers in a semi-conductor D. Exposing a crystal of a semiconductor to heat or light starts displacing valence electrons which then move throughout the crystal
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Not Answered
Updated 12/12/2017 6:51:13 AM
1 Answer/Comment
A material is classified as a semiconductor if its resistance to the flow of electric current is too low to permit it to be called a conductor is true about semi-conductors.
Added 12/12/2017 6:51:13 AM
This answer has been confirmed as correct and helpful.
Confirmed by Janet17 [12/12/2017 6:58:14 AM]
The valence of an element or radical is A. equal to the number of positive or negative charges on the ion. B. less than the number of positive or negative charges on the ion. C. not related to the number of positive or negative charges on the ion. D. greater than the number of positive or negative charges on the ion.
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Updated 12/15/2017 2:54:11 PM
1 Answer/Comment
The valence of an element or radical is equal to the number of positive or negative charges on the ion.

Added 12/15/2017 2:54:11 PM
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Unlike other kinds of liquids, volatile liquids A. ignite readily at a relatively low temperature. B. flow rapidly at a relatively low temperature. C. freeze readily at a relatively high temperature. D. evaporate rapidly at a relatively low temperature.
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Updated 12/11/2017 2:04:56 PM
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Unlike other kinds of liquids, volatile liquids evaporate rapidly at a relatively low temperature.
Added 12/11/2017 2:04:56 PM
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