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Whitepunk [10]
2 years ago
15

What is the frequency of a photon with an energy of 3.26 x 10-19 J?

Chemistry
1 answer:
Kobotan [32]2 years ago
8 0

Answer:

B.

from \: eisteins \: energy \: relation :  \\ E = hf  \\ h \: is \: plancks \: constant\\ 3.26 \times  {10}^{ - 19}  = 6.63 \times  {10}^{ - 34 }  \times f \\ f =  \frac{3.26 \times  {10}^{ - 19} }{6.63 \times  {10}^{ - 34} }  \\ f = 4.92 \times  {10}^{14}  \: Hz

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Anvisha [2.4K]

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7 0
3 years ago
Identify the importance of water. check all that apply
Lunna [17]

Answer

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Explanation:

4 0
2 years ago
What particle revolves around the center of the atom? What is its Charge?
Serjik [45]

Answer:

Electrons, with a charge of -1.

Explanation:

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7 0
3 years ago
Identify the type of reaction and then balance the equation for each of the following reactions.
alexgriva [62]

Answer:

The answer to your question is below

Explanation:

There are 4 types of chemical reactions:

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- Decomposition is when 1 compound is broken into 2 or more products.

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- Double replacement is when the cations of two compounds are interchanged.

1.- Decomposition                      2 Al₂O₃    ⇒    4 Al   +  3O₂

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3.- Combustion                      2C₆H₆  +  15O₂   ⇒   12CO₂   +   6H₂O

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6 0
3 years ago
Calculate the mass of 4.55x1024 molecules of sucrose
maxonik [38]

Answer:

2584 g

Explanation:

The molecular formula for sucrose is C₁₂H₂₂O₁₁, which means its molar mass is 342.3 g/mol.

First we<u> convert molecules into moles</u> by using <em>Avogadro's number</em>:

  • 4.55x10²⁴ molecules ÷ 6.023x10²³ mol/molecules = 7.55 mol

Now we <u>convert moles of sucrose into grams</u>, using its<em> molar mass</em>:

  • 7.55 mol * 342.3 g/mol = 2584 g
7 0
3 years ago
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