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Damm [24]
4 years ago
6

Check the statement(s) that is(are) true. Check All That Apply An excited atom can return to its ground state by absorbing elect

romagnetic radiation.An excited atom can return to its ground state by absorbing electromagnetic radiation. The energy of an atom is increased when electromagnetic radiation is emitted from it.The energy of an atom is increased when electromagnetic radiation is emitted from it. The energy of electromagnetic radiation increases as its frequency increases.The energy of electromagnetic radiation increases as its frequency increases. Niels Bohr quantized electromagnetic radiation.Niels Bohr quantized electromagnetic radiation. Red light is more energetic than blue light. Red light is more energetic than blue light. The frequency and wavelength of electromagnetic radiation are inversely proportional.The frequency and wavelength of electromagnetic radiation are inversely proportional.
Chemistry
1 answer:
Natalija [7]4 years ago
5 0

Answer:

The energy of electromagnetic radiation increases as its frequency increases.

The frequency and wavelength of electromagnetic radiation are inversely proportional.

Explanation:

According to Max Plank's equation, the energy of electromagnetic radiation is given by E=hf where h= Plank's constant and f= frequency of the electromagnetic radiation. This means that the energy and frequency of electromagnetic radiation and its energy are related by a direct proportion. As frequency of the electromagnetic radiation increases, the energy of the radiation increases also.

However, frequency and wavelength of electromagnetic radiation are inversely related. The frequency decreases with increasing wavelength of electromagnetic radiation.

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Expand in powers. use the decimal values of any digits unique to the hexadecimal system.
lesya692 [45]

Expanding in powers 4FCsixteen.

<h3>What is hexadecimal system?</h3>

Hexadecimal is an easy route for addressing twofold. It is vital to take note of that PCs don't utilize hexadecimal - it is utilized by people to abbreviate parallel to an all the more effectively reasonable structure. Hexadecimal Number System is generally utilized in Computer programming and Microprocessors. It is likewise useful to portray colors on pages. Every one of the three essential tones is addressed by two hexadecimal digits to make 255 potential qualities, hence bringing about in excess of 16 million potential tones. The primary benefit of utilizing Hexadecimal numbers is that it utilizes less memory to store more numbers, for instance it stores 256 numbers in two digits while decimal number stores 100 numbers in two digits. This number framework is likewise used to address Computer memory addresses.

Learn more about hexadecimal system, refer:

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3 0
2 years ago
What is the chemical name of this compound? Na2S:
ahrayia [7]

Answer:

Sodium Sulfuret

7 0
3 years ago
If matter is neither created nor destroyed, why can’t we just go directly from grams of reactant to grams of product?
algol [13]
Not all matter in the reactant goes to the product. Some matter is byproducts.
4 0
3 years ago
What can be determined by the following diagrams?<br><br>plz don't guess​
antoniya [11.8K]

Answer: D.

Explanation:

7 0
3 years ago
Gaseous methane (CH4) reacts with gaseous oxygen gas (O2) to produce gaseous carbon dioxide (CO2) and gaseous water (H2O). If 28
elena-14-01-66 [18.8K]

Answer:

68.1% is percent yield of the reaction

Explanation:

The reaction of methane with oxygen is:

CH₄ + 2O₂ → CO₂ + 2H₂O

<em>Where 2 moles of oxygen react per mole of CH₄</em>

<em />

Percent yield is:

Actual yield (28.2g CO₂) / Theoretical yield * 100

To solve this question we need to find theoretical yield finding limiting reactant :

<em>Moles CH₄:</em>

15.1g CH₄ * (1mol / 16.04g) = 0.9414 moles

<em>Moles O₂:</em>

81.2g * (1mol / 32g) = 2.54 moles

For a complete reaction of 0.9414 moles of CH₄ are needed:

0.9414 moles CH₄ * (2 mol O₂ / 1mol CH₄) = 1.88 moles of O₂. As there are 2.54 moles, O₂ is in excess and <em>CH₄ is limiting reactant</em>

In theoretical yield, the moles of methane added = Moles of CO₂ produced. That is 0.9414 moles CO₂. In grams = Theoretical yield:

0.9414 moles CO₂ * (44.01g / mol) = 41.43g CO₂

Percent yield: 28.2g CO₂ / 41.43g CO₂ * 100=

<h3>68.1% is percent yield of the reaction</h3>
6 0
3 years ago
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