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DanielleElmas [232]
3 years ago
8

The combustion reaction of propane is described by the reaction. C3H8 + 5O2 ? 4H2O + 3CO2. How many moles of O2 are required to

generate 3 moles of CO2?
Chemistry
1 answer:
Minchanka [31]3 years ago
7 0

the Answer would be one mole

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In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is appro
Zolol [24]

This is an incomplete question, here is a complete question.

In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 2.15\times 10^6m/s?

Find the force acting on the electron as it revolves in a circular orbit of radius 5.34\times 10^{-11}m.

Answer : The force acting on electron is, 7.9\times 10^{-8}N

Explanation :

Formula used :

F=\frac{mv^2}{r}

where,

F = force acting on electrons

m = mass of electrons = 9.1\times 10^{-31}kg

v = speed of electron = 2.15\times 10^6m/s

r = radius of circular orbit = 5.34\times 10^{-11}m

Now put all the given values in the above formula, we get:

F=\frac{(9.1\times 10^{-31}kg)\times (2.15\times 10^6m/s)^2}{5.34\times 10^{-11}m}

F=7.9\times 10^{-8}N

Thus, the force acting on electron is, 7.9\times 10^{-8}N

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3 years ago
Who revised the periodic table
o-na [289]

Answer:

Henry Moseley

Explanation:

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Why does pure iron not have many uses?
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Because it is a pure substances <span />
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Ethanol, CzH5OH, is an organic chemical compound used in medical wipes and most commonly in antibacterial
Alinara [238K]

Answer:

13.1275%

Explanation:

Molecular formula of ethanol is C2H5OH

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Oxygen: 15.99g/mol

Mass percent of hydrogen = 6/46×100 = 13.1275%

Hope this helps, have a great day!

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