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Alexxandr [17]
3 years ago
5

What did Rutherford's gold-foil experiment help him conclude?

Chemistry
2 answers:
Svetach [21]3 years ago
8 0
C. mass is protons and neutrons. Both are in the nucleus
GREYUIT [131]3 years ago
8 0

Answer:

That experiment led not only him but scientists in general to conclude and to prove that the atom's nucleous is not solid, proving Thomson's Plum Pudding model wrong and contradicting that previous hypothesis since the beam of positively charged particles pierced and ran through the foil, thus the volume of the atom is mostly unoccupied, setting up the fundamentals of what until these days is the concept of an atom. The most suitable answer would be then <em>C</em>.

Explanation:

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Room temperature is often assumed to be 25∘c. Calculate the molar volume of an ideal gas at 25∘c and 1 atm pressure.
Debora [2.8K]

Answer:

  • 24.5 liter / mol

Explanation:

<u>1) Data:</u>

a) T = 25°C = 25 + 273.15K = 298.15 K

b) P = 1 atm

c) assumption: ideal gas

<u>2) Formulae and principles</u>

a) Ideal gas equation: p V = n R T, where:

  • p = pressure
  • V = volume
  • n = number of moles
  • R = universal constant of gases = 0.0821 atm-liter / K-mol
  • T = absolute temperature (Kelvin)

b) Molar volume: ν = V / n, where:

  • ν = molar volume
  • V = volume
  • n = number of moles

<u>3)  Solution:</u>

  • p V = n R T⇒ V/n = ν = RT / p =

                                            = 0.0821 atm-liter / mol-K × 298.15 K / 1 atm

                                            = 24.5 liter / mol                           

6 0
3 years ago
Teeth and long bones are good indicators of age in children; ribs and joints are better for adults.
attashe74 [19]

Answer:

True

Explanation:

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Answer:

2.32 liters

Explanation:

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Explain why a nuclear chain reaction is self-sustaining.
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answer is written in word file attached below

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Organisms compete for the resources they need to which are survive- air, water, food, and space.

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3 years ago
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