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Blababa [14]
2 years ago
9

Issue like gay marriage, abortion, and education have caused debate over the constitution because of the issue of what? (Hint: f

ederalism)
Chemistry
1 answer:
Korolek [52]2 years ago
3 0
Yes 81671 cupcake ham shops
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What is the energy of a photon that emits a light of frequency 6.42 x 1014 Hz?<br><br>​
svetlana [45]

Answer:

Option B. 4.25×10¯¹⁹ J

Explanation:

From the question given above, the following data were obtained:

Frequency (f) = 6.42×10¹⁴ Hz

Energy (E) =?

Energy and frequency are related by the following equation:

Energy (E) = Planck's constant (h) × frequency (f)

E = hf

With the above formula, we can obtain the energy of the photon as follow:

Frequency (f) = 6.42×10¹⁴ Hz

Planck's constant (h) = 6.63×10¯³⁴ Js

Energy (E) =?

E = hf

E = 6.63×10¯³⁴ × 6.42×10¹⁴

E = 4.25×10¯¹⁹ J

Thus, the energy of the photon is 4.25×10¯¹⁹ J

3 0
3 years ago
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How must atoms change so that they can join to form an ionic compound
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Atoms must gain or lose electrons in order to become ions if they are to form ionic bonds.
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2 years ago
Cathode rays were shown to be a stream of _____. protons electrons neutrons quarks
Murljashka [212]

It's B) electrons, is the right answer

7 0
3 years ago
The density of water is 1.00 g/ml at 4°c. how many water molecules are present in 2.36 ml of water at this temperature?
spin [16.1K]

Mass of 1 ml of water 1 g as density of water 1.00 g/ml at 4° C. So, mass of 2.36 ml of water \frac{1}{2.36} g= 0.423 g.

Molecular mass of water is 18 g which indicates 18 g water contains 6.023 X 10^{23} number of water molecules. So, 0.423 g of water contains \frac{6.023 X 10^{23} X 0.423 }{18}  g = 0.141 X 10^{23} number of water molecules= 1.41 X 10^{22} number of water molecules.

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3 years ago
An element's atomic number is 62. How many electrons would an atom of this element have?
mylen [45]

it has 62 electrons because science


8 0
2 years ago
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