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Zina [86]
3 years ago
8

Positron Emission Tomography (PET) is an advanced medical scanning technique. Fluorine-18 is a commonly used isotope for PET sca

ns. Which equation shows positron emission by F-18?
A. equation A

B. equation B

C. equation C

D. equation D

Chemistry
1 answer:
TiliK225 [7]3 years ago
3 0

Answer:

Option D. equation D

Explanation:

Positron is simply a beta plus decay or superscript 0 e subscription 1 (0 1 e).

Now, let us consider the options given:

Option A is emitting alpha decay

Option B is emitting beta minus decay.

Option C is emitting beta minus decay.

Option D is emitting beta plus decay also known as Positron.

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The rate law for the reaction 3a ⟶⟶ c is rate = 4. 36 x 10–2 l • mol–1 • h–1[ a ]2 how long will it take in hours for the concen
Paha777 [63]

The hours taken for concentration to decrease from 0 to 74 min. to 0.21 m is 91.7 hours.

<h3>What is the rate law of a reaction?</h3>

Rate law depicts the rate of a chemical reaction depend on the concentration of the reactant.

The given reaction is second order reaction

Thus, the hours taken for concentration to decrease from 0 to 74 min. to 0.21 m is 91.7 hours.

Learn more about rate law of a reaction

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4 0
2 years ago
Given the reaction:
WARRIOR [948]

Answer:

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Explanation:

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Therefore  the answer is 24/6 = 4 moles of C6H1206.

6 0
2 years ago
10 points
kaheart [24]

Answer:

False.

Explanation:

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8 0
3 years ago
Igneous rock can be changed into which type of rock through the application of heat and pressure
Irina18 [472]
The answer is metamorphic.. 
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3 years ago
What occurs when energy is removed from a liquid-vapor system in equilibrium
yulyashka [42]

<span>The answer is that the number of water molecules  increases and that of vapor decreases.  When energy is removed from the system it would do so mostly as heat. Therefore the energy in the system would decrease and the molecules would vibrate at lower energies. Therefore, several water vapor molecules would turn back to water.  </span>






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3 years ago
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