Question and answer
A star at the end of its life-cycle, composed of mostly carbon, is a A. red dwarf. B. nova. C. white dwarf. D. giant.
A star at the end of its life-cycle, composed of mostly carbon is a white dwarf.
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Expert answered|Score 1|chicory|Points 5264|
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Asked 10/1/2018 8:41:31 AM
Updated 10/1/2018 11:08:01 AM
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This answer has been confirmed as correct and helpful.
Confirmed by alfred123 [10/1/2018 11:08:01 AM]
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In scientific notation, the number 39,940,000,000 becomes A. 39.94 109. B. 3.994 10 10. C. 3.994 1010. D. 3994 107.
Weegy: In scientific notation, the number 39,940,000,000 becomes 3.994 x 10^10. (More)
Question
Updated 10/1/2018 7:15:30 AM
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Which of the following is not purely potential energy? A. Thermal energy B. Chemical energy C. Gravitational energy D. Nuclear energy
Weegy: Thermal energy is not purely potential energy. (More)
Question
Updated 86 days ago|9/5/2020 1:42:22 PM
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Which of the following displays a noncontact force? A. Hitting a golf ball onto a fairway B. Opening a door C. Two magnets pulling toward one another D. Typing on a keyboard
Weegy: Two magnets pulling toward one another displays a noncontact force. (More)
Question
Updated 10/1/2018 10:05:13 PM
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18. In a solution if substance A makes up 1%, substance B makes up 9%, substance C makes up 20% and substance D makes up 70%, which substance would generally function as the solvent? A. Substance D B. Substance C C. Substance A D. Substance B
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Not Answered
Updated 140 days ago|7/13/2020 1:28:40 PM
1 Answer/Comment
In a solution if substance A makes up 1%, substance B makes up 9%, substance C makes up 20% and substance D makes up 70%, Substance D would generally function as the solvent.

Added 140 days ago|7/13/2020 1:28:40 PM
This answer has been confirmed as correct and helpful.
Which of the following does not increase reaction rates? A. Inhibitor B. Catalyst C. Pressure D. Temperature
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Not Answered
Updated 229 days ago|4/15/2020 2:48:24 PM
1 Answer/Comment
Inhibitor does not increase reaction rates.
Added 229 days ago|4/15/2020 2:48:24 PM
This answer has been confirmed as correct and helpful.
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