Question and answer
The valence of an element or radical is A. greater than 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. equal to the number of positive or negative charges on the ion.
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The valence of an element or radical is equal to the number of positive or negative charges on the ion.
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Asked 6/17/2019 9:12:47 AM
Updated 260 days ago|11/11/2020 7:47:54 AM
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The valence of an element or radical is equal to the number of positive or negative charges on the ion.
Added 260 days ago|11/11/2020 7:47:54 AM
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The transmission of heat requiring the movement of a liquid or a gas is A. radiation. B. transduction. C. conduction. D. convection.
Weegy: The transmission of heat requiring the movement of a liquid or a gas is convection. (More)
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Updated 112 days ago|4/8/2021 2:30:17 AM
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The main difference between turbojets and rocket engines is the fact that A. rocket engines need oxygen from the air. B. rocket engines aren't dependent on oxygen from the air. C. turbojets aren't dependent on oxygen from the air. D. turbojets carry their own supply of oxygen as oxidizers.
Question
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Updated 242 days ago|11/28/2020 4:57:39 PM
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The main difference between turbojets and rocket engines is the fact that rocket engines are not dependent on oxygen from the air.

Added 242 days ago|11/28/2020 4:57:39 PM
This answer has been confirmed as correct and helpful.
Which one of the following substances is a liquid fuel used in rocket engines? A. Potassium perchlorate B. Liquid oxygen C. Ammonia D. Sodium nitrate
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Updated 242 days ago|11/28/2020 4:57:54 PM
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Liquid oxygen is a liquid fuel used in rocket engines.
Added 242 days ago|11/28/2020 4:57:54 PM
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During the stage of internal-combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber, A. the intake valve is open, and the exhaust valve is closed. B. both the intake and exhaust valves are open. C. both the intake and exhaust valves are closed. D. the exhaust valve is open, and the intake valve is closed.
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Updated 357 days ago|8/5/2020 1:05:01 PM
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During the stage of internal combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber, both valves will be closed.

Added 357 days ago|8/5/2020 1:05:01 PM
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Convert the temperature 288 K to degrees Celsius. A. 561°C B. 748°C C. –172°C D. 15°C
Weegy: The temperature 288 K converted to degrees Celsius is 15°C. (More)
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Updated 6/17/2019 7:16:22 PM
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