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snow_tiger [21]
3 years ago
6

What type of evidence is a warm cup of coffee?

Chemistry
2 answers:
boyakko [2]3 years ago
4 0

Answer:

C. Transient evidence

Explanation:

crimeas [40]3 years ago
3 0

Answer:

c is the answer

hope i got it right

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What are the similarities and differences between protons and neutrons
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"Electric charge: the proton and electron are electrically charged, while the neutron is not. The proton and electron, however, are oppositely charged. Role in the atom: Protons and neutrons are closely bound together in the nucleus of an atom, while electrons are spread out around the nucleus."

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How would you build a model that is ionized? what happens if an atom is too ionized? how would you build a model that is radioac
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3 years ago
If a 125 gms of radioactive element has a half life of 60 min how many half lives will it go through to become 3.90625 gms
Sonja [21]

Answer:

  • 5

Explanation:

Let the number of half lives be x

<u>Solve this equation to find the value of x:</u>

  • 125*(1/2)ˣ = 3.90625
  • (0.5)ˣ = 3.90625 / 125
  • (0.5)ˣ = 0.03125
  • log (0.5)ˣ  = log 0.03125
  • x =  log 0.03125 / log 0.5
  • x = 5

4 0
2 years ago
The following diagram shows various positions of the moon in its orbit around Earth. The image of the moon shows its phase as se
Serga [27]

Answer:

Position D

Explanation:

One fourth of the Moon will be visible from Earth when the Moon is in position D. The reason why this is the right position is that the Moon will be in a position where the majority of its surface that is lighted by the Sun is facing the Sun. On the other hand, the angle is just right that about one quarter of the lighted part of the Moon is also facing the Earth. This will result in a perception from the Earth's view point that the Moon is lighted at one quarter of its surface.

6 0
3 years ago
How many grams of h20 are produced if 75g of CO2 are produced. (Work Shown with the answer would be preferred.)
Agata [3.3K]
2:7 ratio of ethane to O2 = 15:x 9solve for x)
x=52.5 mol O2
5 0
3 years ago
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