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Genrish500 [490]
3 years ago
8

what are 2 differences between the atomic theory described by Thompson and that described by Rutherford ?

Chemistry
1 answer:
Alchen [17]3 years ago
6 0

Explanation:

1)Thomson model, electrons are embedded in positive charged solid material(nucleus)

Rutherford model, electrons surround the positive charged nucleus

2)Thomson, does not explain about atomic nucleus

Rutherford, explains in detail about nucleus

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student has calibrated his/her calorimeter and finds the heat capacity to be 14.2 J/°C. S/he then determines the molar heat capa
nika2105 [10]

Answer:

24.03 J/mol.ºC

Explanation:

For a calorimeter, the heat lost must be equal to the heat gained from water plus the heat gained from calorimeter, which has the same initial temperature as the water.

-Qal = Qw + Qc (minus signal represents that the heat is lost)

-mal*Cal*ΔTal = mw*Cw*ΔTw + Cc*ΔTc

Where m is the mass, C is the specific heat, ΔT is the temperature variation, al is from aluminum. w from water and c from the calorimeter. Cw = 4.186 J/gºC

-25.5*Cal*(22.7 - 100) = 99.0*4.186*(22.7 - 18.6) + 14.2*(22.7 - 18.6)

1971.15Cal = 1699.10 + 58.22

1971.15Cal = 1757.32

Cal = 0.89 J/g.ºC

The molar mass of Al is 27 g/mol

Cal = 0.89 J/g.ºC * 27 g/mol

Cal = 24.03 J/mol.ºC

6 0
3 years ago
Would a hurricane be more likely to remain a hurricane if it reached point A or point B?
Andre45 [30]

B. because of the water

hope this helps :)

7 0
3 years ago
Read 2 more answers
Where scientist say that a theory can never be proven what are they actually saying
Gre4nikov [31]
When scientists say that a theory can never be proven it is always possible for a new data to contradict a theory
6 0
2 years ago
What are two methods humans have used to keep deadly diseases from spreading?
kirill [66]

Answer:

they get away from eachothwr and they make sure they wash there hands

Explanation:

when your far from someone you dont ger a disease and you try to wash your hands daily

6 0
3 years ago
Samples of f2 gas and xe gas are mixed in a container of fixed volume. the initial partial pressure of the f2 gas is 8.0 atmosph
anzhelika [568]
Answer is: XeF₄.
p₁ (F₂) = 8,0 atm.
p₁ (Xe) = 1,7 atm.
p₂ (F₂) = 4,6 atm.
p₂ (Xe) = 0 atm, all reacted.
p - partial pressure.
pressure of F₂ reacted = Δp (F₂) = 8.0 - 4.6 = 3.4 atm.
pressure of Xe reacted = Δp(Xe) = 1,7 - 0 = 1,7 atm.
Δp (F₂)  / Δp(Xe) = 3,4 atm / 1,7 atm = 2:1.
Reaction: 2F₂ + Xe → XeF₄ (xenon-tetrafluoride)
8 0
3 years ago
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