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Nady [450]
3 years ago
10

What is the heat solution

Chemistry
1 answer:
kirill115 [55]3 years ago
3 0
The heat evolved when a substance dissolves
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You observe 2 waves named alpha and beta. The alpha wave has a frequency of 5 Hz and the beta wave has a frequency of 2 Hz. Base
MAVERICK [17]

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

For beta wave,

\lambda_2=\dfrac{c}{f_2}\\\\\lambda_2=\dfrac{3\times 10^8}{2}\\\\=15\times 10^7\ m

From the above calculations, we find that the wavelength of the alpha wave is shorter than the wavelength of the beta wave.

8 0
2 years ago
When heated zinc carbonate decomposed to form zinc oxide and carbon dioxide gas how do you knke decomposition is complete
katrin2010 [14]

Answer:

This reaction is characteristic to metal carbonates, which decompose when heated to form the oxide of the metal and carbon dioxide gas.

Explanation:

Just did it...

6 0
2 years ago
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Which one of the following metallic element is liquid are room temperature​
cricket20 [7]

Answer:

The only liquid elements that can melt at standard temperature and pressure are bromine (Br) and mercury (Hg).

7 0
3 years ago
Based on the electron configuration of the two
Lena [83]

Answer:

3:1

Explanation:

Lithium is a group 1 element. This means it would donate one electron to form the cation.

Nitrogen on the other hand is a group 5 element. It would accept 3 electrons to form the anion.

This means there has to be three lithium atoms, each donating an electron each to the nitrogen atom for a compound to be formed.

The formular for the ionic compound would be given as;

Li₃N

Hence the ration is 3:1

5 0
2 years ago
Help pleaseeeee HAPPY EASTER
spin [16.1K]
The answer is porter and Happy Easter
5 0
3 years ago
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