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Marysya12 [62]
3 years ago
10

Compare the modern (electron cloud) model of the atom with Bohr’s atomic model. Which of these statements describe the two model

s correctly? Check all of the boxes that apply.
A. Bohr’s model was replaced only because of its age.

B. Bohr’s model electrons cannot exist between orbits, but in the electron cloud model the location of the electrons cannot be predicted.

C. The modern model explains all available data about atoms; Bohr’s model does not.

D. The modern model is more widely accepted because it was proposed by more well known scientists.
Chemistry
2 answers:
AfilCa [17]3 years ago
6 0

Answer:

B. Bohr’s model electrons cannot exist between orbits, but in the electron cloud model, the location of the electrons cannot be predicted.

AND

C. The modern model explains all available data about atoms; Bohr’s model does not.

Explanation:

The answers are right on Edge. :)

Vesnalui [34]3 years ago
5 0

Answer:

B and C is the correct answer

Explanation:

Got it correct on edge

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Explanation:

                     The balance chemical equation for given single replacement reaction is;

                                    Sn + 2 HF → SnF₂ + H₂

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As we know,

                    Moles  =  Mass / A.Mass    ----- (1)

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           Mass of Tin  =  75.0 g

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Putting values in eq. 1;

                    Moles  =  75.0 g / 118.71 g/mol

                    Moles  =  0.6318 moles of Sn

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                     1 mole of Sn reacted with  =  2 moles of HF

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              0.6318 moles of Sn will react with  =  X moles of HF

Solving for X,

                     X =  0.6318 mol × 2 mol / 1 mol

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