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polet [3.4K]
3 years ago
7

Why is boiling water a physical change

Chemistry
1 answer:
Harrizon [31]3 years ago
6 0

Answer:

Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O).

Explanation:

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Determine the pH of a solution of 0.00278 M of HClO4. Report the answer to two digits past the decimal.
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Answer:

The pH of a solution of 0.00278 M of HClO₄ is 2.56

Explanation:

pH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance and is calculated as:

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pH= 2.56

<u><em>The pH of a solution of 0.00278 M of HClO₄ is 2.56</em></u>

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3 years ago
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(( PLEASE HELP QUICK ))Which expression can be used to calculate the ratio of the rate of effusion of gas A to the rate of effus
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The square root of the molar mass of B ÷ the square root of the molar mass of A  

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