Volume percent<span> or </span>volume/volume percent<span> (v/v%) is used when preparing solutions of liquids. It will have units of volume of the smaller composition substance over the volume of the solution. We calculate as follows:
12.5 mL ethanol = .225 mL ethanol / 1 mL solution ( V )
V = 55.56 mL of the 22.5 % by volume ethanol solution is needed
Hope this answers the question.</span>
Answer:
shorter wavelength = alpha wave
Explanation:
Given that,
The alpha wave has a frequency of 5 Hz and the beta wave has a frequency of 2 Hz.
We need to compare the wavelengths of these two waves.
For alpha wave,
![\lambda_1=\dfrac{c}{f_1}\\\\\lambda_1=\dfrac{3\times 10^8}{5}\\\\=6\times 10^7\ m](https://tex.z-dn.net/?f=%5Clambda_1%3D%5Cdfrac%7Bc%7D%7Bf_1%7D%5C%5C%5C%5C%5Clambda_1%3D%5Cdfrac%7B3%5Ctimes%2010%5E8%7D%7B5%7D%5C%5C%5C%5C%3D6%5Ctimes%2010%5E7%5C%20m)
For beta wave,
![\lambda_2=\dfrac{c}{f_2}\\\\\lambda_2=\dfrac{3\times 10^8}{2}\\\\=15\times 10^7\ m](https://tex.z-dn.net/?f=%5Clambda_2%3D%5Cdfrac%7Bc%7D%7Bf_2%7D%5C%5C%5C%5C%5Clambda_2%3D%5Cdfrac%7B3%5Ctimes%2010%5E8%7D%7B2%7D%5C%5C%5C%5C%3D15%5Ctimes%2010%5E7%5C%20m)
From the above calculations, we find that the wavelength of the alpha wave is shorter than the wavelength of the beta wave.
ANSWERS:
1.
![2KClO_{3}](https://tex.z-dn.net/?f=2KClO_%7B3%7D%20%20)
⇒ 2KCl +
![3O_{2}](https://tex.z-dn.net/?f=3O_%7B2%7D%20)
2.
![H_{2} C_{2} O_{4} + 2NaOH](https://tex.z-dn.net/?f=%20H_%7B2%7D%20%20C_%7B2%7D%20O_%7B4%7D%20%20%2B%202NaOH%20%20)
⇒
![Na_{2} C_{2} O_{4} + 2 H_{2} O](https://tex.z-dn.net/?f=%20Na_%7B2%7D%20%20C_%7B2%7D%20O_%7B4%7D%20%20%2B%202%20H_%7B2%7D%20O)
3.
![2 C_{10} H_{22} + 31O_{2}](https://tex.z-dn.net/?f=2%20C_%7B10%7D%20%20H_%7B22%7D%20%2B%20%2031O_%7B2%7D%20%20)
⇒
![20C O_{2} + 22 H_{2} O](https://tex.z-dn.net/?f=20C%20O_%7B2%7D%20%2B%2022%20H_%7B2%7D%20O)
4.
![4 H_{2} + Fe_{3} O_{4}](https://tex.z-dn.net/?f=4%20H_%7B2%7D%20%2B%20Fe_%7B3%7D%20O_%7B4%7D%20)
⇒
![3Fe +4 H_{2} O](https://tex.z-dn.net/?f=3Fe%20%2B4%20H_%7B2%7D%20O)
5.
![4P + 5 O_{2}](https://tex.z-dn.net/?f=4P%20%2B%205%20O_%7B2%7D)
⇒
![2 P_{2} O_{5}](https://tex.z-dn.net/?f=2%20P_%7B2%7D%20%20O_%7B5%7D%20)
I have attached my work for 1-3. I would like to see if you can get 4 and 5 on your own. but, if you are struggling/copnfused please let me know in the comments! :)
an erosive process or erosion
erosion is when a rock is changed through the weather
Yo fegrhbybybyby y jzksksks