1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elis [28]
2 years ago
13

Someone please help will mark as brainliest

Chemistry
1 answer:
Karo-lina-s [1.5K]2 years ago
3 0

Answer:

PET works by using a scanning device (a machine with a large hole at its center) to detect photons (subatomic particles) emitted by a radionuclide in the organ or tissue being examined.

Newer technology combines PET and CT into one scanner, known as PET/CT. PET/CT shows particular promise in the diagnosis and treatment of lung cancer, evaluating epilepsy, Alzheimer's disease and coronary artery disease.

Explanation: Most Brainliest Please

You might be interested in
Calculate E∘cell for the following balanced redox reaction:<br><br> 2Cu(s)+Ca2+(aq)→2Cu+(aq)+Ca(s)
Neko [114]

Answer:

FOK I don’t know. I’ll come back to the question

Explanation:

6 0
3 years ago
The small bags of silica gel you often see in a new shoe box are placed there to control humidity. Despite its name, silica gel
Zinaida [17]

So we look equation for the free Gibbs free energy (ΔG) which depends on entalpy (ΔH), temperature (T) and entropy (ΔS):

ΔG = ΔH - TΔS

ΔG is negative (-) because the water absorption on the silica gel surface is a spontaneous process.

ΔH is negative (-) because the water absorption on the silica gel surface is a exothermic process (it releases heat and if you want to desorb the water form the silica gen you need to add heat which is a endothermic process).

ΔS is negative (-) because the water is adsorbed, so from disorderly state you take the water molecules and put them in a orderly state and by doing that you decrease the entropy.

6 0
3 years ago
Mantle convection is a process of that creates circular currents in the asthenosphere. As a result, the plates slowly move.
LUCKY_DIMON [66]

Answer:

<em>Rigid plates that move around Earth's surface is called tectonic plates. </em>

Explanation:

Lithosphere is rigid and relatively cold and is the outer surface of the planet. The convective motions of maintenance break the lithosphere into plates.

This place that a form can move in any direction, can move towards each other, can move away and push each other which is the reason for formation of mountains for shifting of continents for making of ocean basin.  

8 0
3 years ago
A gas occupies a volume of 0.20 L at 25 kPa. What volume will the gas occupy at 2.0 kPa?
ycow [4]

Answer:

2  L

Explanation:

5 0
3 years ago
A geochemist examines a piece of metal that he found in the soil. He performs tests to identify the metal from its density, elec
aniked [119]

Answer:

what r the statements?

Explanation:

attach or write them

3 0
3 years ago
Other questions:
  • 13. During photosynthesis, carbon dioxide and water combine according to the general
    11·1 answer
  • Which element combination(s) would result in electrons being shared?
    15·2 answers
  • Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus
    14·1 answer
  • A chemical reaction produces 653 550 kj of energy as heat in 142.3min. calculate the rate of energy transferred in kj per minute
    8·1 answer
  • Calculate the standard enthalpy of formation of NOCl(g) at 25 ºC, knowing that the standard enthalpy of formation of NO(g) at th
    15·1 answer
  • A chemistry student’s height is measured at 68.5 inches. How tall is the student in cm?
    8·1 answer
  • Answer all questions pls
    15·1 answer
  • Select the correct answer. What happens when an electron absorbs energy? A. The electron moves from a lower energy orbital to a
    11·1 answer
  • Solve pls brainliest
    9·1 answer
  • What are 3 household substances that contain acids and say why are they useful​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!