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Furkat [3]
2 years ago
6

What is emitted when an electron returns to its lower energy level?

Chemistry
2 answers:
Yakvenalex [24]2 years ago
4 0

Answer:

When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.

Explanation:

jok3333 [9.3K]2 years ago
4 0

Answer:

A photon

Explanation:

Hope it helps!

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A chemist prepares a solution of barium acetate by measuring out of barium acetate into a volumetric flask and filling the flask
leonid [27]

The given question is incomplete. The complete question is :

A chemist prepares a solution of barium acetate by measuring out 32 g of barium acetate into a 350 ml volumetric flask and filling the flask to the mark with water. Calculate the concentration in of the chemist's barium acetate solution. Round your answer to significant digits.

Answer:  The concentration of barium acetate solution is 0.375 mol/L

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n = moles of solute

V_s = volume of solution in ml

moles of Ba(CH_3COO)_2 = \frac{\text {given mass}}{\text {Molar mass}}=\frac{32g}{255g/mol}=0.125mol

Now put all the given values in the formula of molality, we get

Molarity=\frac{0.125\times 1000}{350ml}

Molarity=0.357M

Therefore, the concentration of solution is 0.375 mol/L

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3 years ago
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Solnce55 [7]

Answer:

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Explanation:

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5 0
3 years ago
How many atoms are in the peroxide H2O2 molecule? Explain.
Mrrafil [7]
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What happens when soluble fiber is mixed with water?
storchak [24]

Answer:

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