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3 years ago

Evaporation and condensation

Chemistry

2 answers:

bagirrra123 [75]3 years ago

7 0

Answer:

Evaporation and condensation are two processes through which matter changes from one state to another.

Explanation:

Olegator [25]3 years ago

5 0

Answer:

Evaporation and condensation are two processes through which matter changes from one state to another. Matter can exist in three different states: solid, liquid, or gas. In evaporation, matter changes from a liquid to a gas. In condensation, matter changes from a gas to a liquid.

Explanation:

Hope this Helped! :D

Credit sourced from "kids.britannica.com"

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Biology, I believe xx

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2 years ago

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3 years ago

Nitrogen and oxygen form an extensive series of oxides with the general formula NxOy. One of them is a blue solid that comes apa

Marizza181 [45]

Work out the number of moles in

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2 years ago

at a particulat temperature, a smaple of pure water has a Kw of 7.7x10-14. what is the hydroxide concentration of this sample

ycow [4]

Answer: The hydroxide concentration of this sample is $3.85\times 10^{-7}$

Explanation:

When an expression is formed by taking the product of concentration of ions raised to the power of their stoichiometric coefficients in the solution of a salt is known as ionic product.

The ionic product for water is written as:

$K_w=[H^+]\times [OH^-]$

$7.7\times 10^{-14}=[H^+]\times [OH^-]$

As $[H^+]=[OH^-]$

$2[OH^-]=7.7\times 10^{-14}$

$[OH^-]=3.85\times 10^{-7}$

Thus hydroxide concentration of this sample is $3.85\times 10^{-7}$

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2 years ago