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bulgar [2K]
2 years ago
12

Which of the following comparisons correctly describes subatomic particles

Chemistry
2 answers:
kow [346]2 years ago
3 0

Answer:

the first one

Explanation:

neutrons only have neutral charges and electrons are not heavier than protons

kicyunya [14]2 years ago
3 0

Answer: A.

A neutron has a neutral charge and a mass lager than the mass of the electron

Explanation:

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The coefficient of performance (cop) of a refrigerator is defined as the ratio of?
Vinvika [58]

The coefficient of performance (cop) of a refrigerator is defined as the ratio of " the work necessary to heat or cool something usefully."

The usable heating or cooling delivered to work required ratio, also known as the coefficient of performance, or COP, of a heat pump, refrigerator, as well as air conditioning system. Higher efficiency, less energy (power) usage, and thus reduced operational costs are all related to higher COPs.

Coefficient of performance formula:

K = Q_{H} / W_{in}

where, K = Coefficient of performance, Q_{H} = heat of pumps output, W_{in} = work required by the system.

It is refrigeration's coefficient of performance (COP) will always be greater than 1.

Therefore, the coefficient of performance (cop) of a refrigerator is defined as the ratio of " the work necessary to heat or cool something usefully."

To know more about  coefficient of performance

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3 0
1 year ago
Fission and fusion reactions both release energy. However, only fusion reactions
miv72 [106K]
Answer:
<span>D) combine light nuclei
</span>
Explanation:
Fission and fusion both deal with the alteration of atoms in order to produce energy. However, they are actually opposite processes, this is because:
1- Fission occurs when an atomic nucleus is split/divided into two forming two atoms
2- Fusion occurs when two light atomic nuclei combine together to form a single atom.

Hope this helps :) 
5 0
3 years ago
Which of these elements would form an ionic bond between them?
Pepsi [2]
C. Ca and Br because they're metals and nonmetals
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3 years ago
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Fluorine-18 is a positron emitter used in pet scans. write a balanced nuclear equation for the reaction.
kow [346]
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5 0
3 years ago
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Which of the following did Mendeleev not believe in because he could not see them?
Zigmanuir [339]

Answer:atoms

Explanation:

6 0
2 years ago
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