2 years ago

There are the same number of atoms in a mole of calcium (Ca) than in a

1 answer:

zmey [24]2 years ago

5 0

Answer:

True

Explanation:

A mole is defined as a certain amount of a unit. Such as atoms or molecules.

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Zepler [3.9K]

Since this is Argon it would be a noble gas

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2 years ago

alisha [4.7K]

B. physically i hope this helps

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Liono4ka [1.6K]

You use a nucleus with inflection on the arm processor.

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2 years ago

Mariulka [41]

Answer:

The energy difference between these 2p and 2s orbitals is $3.07\times 10^{-19} J$

Explanation:

Wavelength of the photon emitted = $\lambda =646.3 nm =646.3\times 10^{-9} m$

Energy of the photon will corresponds to the energy difference between 2p and 2s orbital = E

Energy of the photon is given by Planck's equation:

$E=\frac{hc}{\lambda }$

h = Planck's constant = $6.626\tiomes 10^{-34} Js$

c = Speed of the light = $3\times 10^8 m/s$

$E=\frac{6.626\tiomes 10^{-34} Js\times 3\times 10^8 m/s}{646.3\times 10^{-9} m}$

$E=3.07\times 10^{-19} J$

The energy difference between these 2p and 2s orbitals is $3.07\times 10^{-19} J$

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3 years ago

icang [17]

A. The concentration is in mol/L

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3 years ago