Ask question

Ask question

All categories

2 years ago

10

True or False: Thermal energy can not transfer when particles of matter are in direct contact with each other, as they are not i

n solids, liquids,or gases.

2 answers:

notsponge [240]2 years ago

4 0

Answer:false

Explanation:

Dima020 [189]2 years ago

3 0

That would be false hope it’s right !!

You might be interested in

How does the shape of the periodic table relate to electron configuration?

Shalnov [3]

Answer:

The answer is rather simple, if you understand electron configurations: the shape of the periodic table mimics the filling of the subshells with electrons. The shape of the periodic table mimics the filling of the subshells with electrons. ... The next two electrons, for Li and Be, would go into the 2s subshell.

Explanation:

8 0

2 years ago

Consider a transition of the electron in the hydrogen atom from n=3 to n=7.

kow [346]

<u>Answer:</u>

<u>For a:</u> The wavelength of light is $1.005\times 10^{-6}m$

<u>For b:</u> The light is getting absorbed

<u>Explanation:</u>

<u>For a:</u>

To calculate the wavelength of light, we use Rydberg's Equation:

$\frac{1}{\lambda}=R_H\left(\frac{1}{n_i^2}-\frac{1}{n_f^2} \right )$

Where,

$\lambda$ = Wavelength of radiation

$R_H$ = Rydberg's Constant = $1.097\times 10^7m^{-1}$

$n_f$ = Higher energy level = 7

$n_i$ = Lower energy level = 3

Putting the values in above equation, we get:

$\frac{1}{\lambda }=1.097\times 10^7m^{-1}\left(\frac{1}{3^2}-\frac{1}{7^2} \right )\\\\\lambda =1.005\times 10^{-6}m$

Hence, the wavelength of light is $1.005\times 10^{-6}m$

<u>For b:</u>

There are two ways in which electrons can transition between energy levels:

<u>Absorption spectra:</u> This type of spectra is seen when an electron jumps from lower energy level to higher energy level. In this process, energy is absorbed.
<u>Emission spectra:</u> This type of spectra is seen when an electron jumps from higher energy level to lower energy level. In this process, energy is released in the form of photons.

As, the electron jumps from lower energy level to higher energy level. The wavelength is getting absorbed.

6 0

3 years ago

How many moles are in 187.54 grams of magnesium chlorate?

Svetlanka [38]

Hey there!

Magnesium chlorate: Mg(ClO₃)₂

Find molar mass.

Mg: 1 x 24.305 = 24.305

Cl: 2 x 35.453 = 70.906

O: 6 x 16 = 96

------------------------------------

191.211 g/mol

We have 187.54 grams.

187.54 ÷ 191.211 = 0.9808

There are 0.9808 moles in 187.54 grams of magnesium chlorate.

Hope this helps!

3 0

3 years ago

Treatment of (S)-( )-5-methyl-2-cyclohexenone with lithium dimethylcuprate gives, after protonolysis, a good yield of a mixture

tekilochka [14]

Answer:

use google and use the first link

Explanation:

6 0

2 years ago

A gymnast jumps from a great height onto a sealed mat filled with air.

ololo11 [35]

The gas particles squeeze closer together

6 0

2 years ago

Read 2 more answers