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topjm [15]
3 years ago
11

Can someone please explain this to me? I need help ​

Chemistry
2 answers:
Vladimir [108]3 years ago
6 0

Answer:

The order would be: X-Rays, Visible Light, and Infrared Waves.

X-Rays have the shortest wavelength out of all three, then Visible Light, and Infrared Waves have the longest wavelength of the three.

Explanation:

So basically, the LONGER the wavelength, the lower the energy. and the SHORTER the wavelength, the higher the energy. For example, Radio waves are the WEAKEST out of all the types of waves because they have the LONGEST wavelengths. Gamma Rays are the STRONGEST out of all the types of waves because they have the SHORTEST wavelengths. So Radio Waves have the lowest energy, and Gamma Rays have the highest energy.

Here is a list of all the types of waves in order from shortest wavelength to longest wavelengths:

Gamma Rays (Shortest Wavelengths, High Energy), then X-Rays would be the second strongest, then Ultraviolet waves, then Visible Light, then Infrared waves, then Microwaves, and lastly Radio Waves (Longest Wavelengths, Low Energy).

skelet666 [1.2K]3 years ago
6 0

Answer:

X rays < red visible < infrared  

Explanation:

According to your picture, gamma rays have the shortest wavelength and radio waves have the longest.

Thus. the order of wavelengths is

X rays < red visible < infrared

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Write a balanced molecular equation describing each of the following chemical reactions:
zhannawk [14.2K]

Answer:  CaCO3 = CaO  + CO2

Explanation:

 CaCO3 = CaO  + CO2

This is balanced already.

<u> Elem  </u>    <u>Reactant</u>  <u>Products</u>

Ca                1                  1

C                  1                   1

O                  3                  3

4 0
2 years ago
In which situation might a forensic scientist decide to collect fiber evidence from a crime scene?
ololo11 [35]

Answer: C

Explanation:

C just because the other choices dont really make sense. They use these fibers as a way to see what clothes, shoe strings, carpets, etc was there it help identify a person at the scene. Hope this helps!!

8 0
2 years ago
The common laboratory solvent ethanol is often used to purify substances dissolved in it. The vapor pressure of ethanol , CH3CH2
OverLord2011 [107]

Answer:

Molar mass of solute is 183.4g/mol

Explanation:

Using Raoult's law it is possible to find moles of solute, thus:

P_{solution} = X_{solvent}P_{solvent}^0

Where pressure of solution is 53.15 mmHg, pressure of pure solvent is 54.68 mmHg and mole fraction is:

53.15 mmHg = X 54.68 mmHg

<em>0.9720 = X</em>

<em />

Mole fraction of solvent is defined as moles of solvent / total moles.

Moles of solvent are:

286.8g × (1mol / 46.07g) = 6.225 moles of ethanol.

That is:

0.9720 = \frac{6.225mol}{Y+6.225mol}

<em>Where Y are moles of solute.</em>

6.051 + 0.9720Y = 6.225

0.9720Y = 0.174

Y = 0.179 moles of solute

As mass of solute dissolved was 32.83g. Molar mass of solute is:

32.83g / 0.179mol = <em>183.4g/mol</em>

4 0
3 years ago
When an endothermic chemical reaction (the system) occurs inside a calorimeter containing water (the surroundings) and no heat e
Nostrana [21]

Answer:

b. Heat flows from the surroundings to the system and the temperature of the water decreases.

Explanation:

The laws of thermodynamics lets us know that energy is neither created nor destroyed but can be converted from one form to another. Also, energy transfer does accompany chemical reactions in the form of heat.

For an endothermic reaction, heat is absorbed by the system from the surroundings. This leads to a drop in the temperature of the surroundings as energy is removed.

This implies that the water temperature decreases.

8 0
2 years ago
Acts as the digestive system inside a cell. It helps to break down old or unneeded parts of the cell, and substances that have b
DIA [1.3K]

Answer:

I think it is enzymes

Explanation:

5 0
2 years ago
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