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Chemistry

1 answer:

ioda3 years ago

7 0

Answer:

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Explanation:

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Which of these best describes the difference between the formulas for nitrogen monoxide and nitrogen dioxide? Which of these bes

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Nitrogen monoxide has 1 oxygen atom and
Nitrogen dioxide has 2 oxygen atoms

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The circle on the left shows a magnified view of a very small portion of liquid water in a closed container. What would the magn

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Once the water evaporates, you will start to see the minerals that were present in the water before it changed state. If the water was from the ocean, you will see salt crystals in the evaporated water. If the water was fresh, you may see other minerals typically found in fresh water.

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Alkynes have what in<br> common with alkenes ?

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Answer:

Alkanes, alkenes and alkynes are simple hydrocarbon chains with no functional groups. Alkanes are identified because the carbon chain has only single bonds. Alkenes have at least one double bond and alkynes have at least one triple bond. The most common alkyne is ethyne, better known as acetylene.

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A sodium atom has 11 protons, 10 electrons, and 12 neutrons. What is its charge

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An ion with 11 protons, 11 neutrons, and 10 electrons would have a charge of 1+, also expressed as a charge of positive one or +1.

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The energy released from 1 gram of uranium is more than 1 million times greater than the energy released from 3 grams of coal. T

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The energy released from 1 gram of uranium is more than 1 million times greater than the energy released from 3 grams of coal is True.

<u>Explanation:</u>

Nuclear Fission is the process in which splitting of a nucleus takes place that releases free neutrons and lighter nuclei. The fission of heavy elements like "Uranium is highly exothermic" and releases "200 million eV" compared to the energy that is released by burning coal which gives a few eV.

In the given example, it is obvious that the energy released from 1 gram of uranium is more than that of the energy released from 3 grams of coal because the amount of energy released during nuclear fission is millions of times more efficient per mass than that of coal considering only $\frac{1}{10}^{th}$ part of the original nuclei is converted to energy.

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