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allochka39001 [22]
2 years ago
11

How many boron atoms are there in 5 molecules of BF3? Hint: The symbol for boron is B. Submit​

Physics
2 answers:
Thepotemich [5.8K]2 years ago
8 0

Answer:

5 atoms of Boron

Explanation:

Boron makes up approximately 15.944% of the mass and the rest of the 84.056% is Fluorine. There is 5 Atoms because Boron atomic mass is 10.811 in 1 molecule of BF3 and you wanted 5 Molecules.

Drupady [299]2 years ago
6 0

Answer:

5 atoms of boron

Explanation:

it's because there is no number written next to the symbol 'B' so it means there's one boron so if we multiply it by 5 since there are 5 molecules it will give us the answer '5'.

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Explanation:

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relative velocity of the object to the S' frame would be

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However is the S' velocity is greater than that of the object then the Vrel of the object with respect to the S' frame is greater than the Vrel of the object with respect to the S frame.

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In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.2 106 m/s.
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The central force acting on the electron as it revolves in a circular orbit is 9.52 \times 10^{-8} \ N.

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The central force acting on the electron as it revolves in a circular orbit is calculated as follows;

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