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Ugo [173]
3 years ago
14

There is a photon with a frequency of 8x10^12 Hz. What is the energy of this photon?

Chemistry
1 answer:
jarptica [38.1K]3 years ago
7 0

Answer:

33.085476 meV ≈ 33 meV

Explanation:

Hope this helped!

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When nonpolar solutes are placed in water, the hydrogen bonding network of water is disrupted, and there are fewer ways for wate
satela [25.4K]

Answer:  increase in entropy

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from  an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

\Delta S is positive when randomness increases and \Delta S is negative when randomness decreases.

When the non polar solutes are placed in water, the hydrogen bonding network of water is disrupted, and there are fewer ways for water to hydrogen-bond with itself. That means the water molecules are more randomly arranged and thus have more entropy and thus \Delta S is positive.                

5 0
3 years ago
Q82. Liquid petrol does not ignite spontaneously when exposed to the air because
sashaice [31]
Liquid petrol does not ignite spontaneously when exposed to the air because there is not enough molecules that contains energy to reach the activation energy. As a result, the reaction cannot proceed and a supply of energy should be added for the reaction to occur.
7 0
3 years ago
Explain why copper is used for the<br> roofs of some buildings and magnesium is not.
Scrat [10]

Answer:

Because of the less reactivity of copper.

Explanation:

As well as being resistant to the elements and thereby less likely to be affected by rainfall, hail, and mildew than other types of roofing, copper is also one of the most fireproof materials available. Copper is also highly resistant to thermal changes and thereby doesn't deteriorate quickly.

Magnesium would also corrode PDQ. Magnesium sheeting would also pose an unacceptably high fire hazard.

3 0
2 years ago
What is the Celsius temperature of 1 mole of a gas that has an average kinetic energy of 4,290 joules?
timofeeve [1]
Well the the answer is 70.8c but if you round it up it is 71c which I choice and got it correct so the answer is 71c

5 0
3 years ago
The density of an object depends on what?<br><br><br><br> Answer correctly and quick!
Dennis_Churaev [7]

Answer:

Density of a quantity of matter is its mass divided by its volume. The mass of an object depends on the atomic mass of the individual atoms or molecules and the how close the they are compressed together.

Explanation:

8 0
3 years ago
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