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Roman55 [17]
3 years ago
11

Difference between Atom and Molecule In three points

Chemistry
2 answers:
PSYCHO15rus [73]3 years ago
5 0

Answer:

A molecule can be defined as the combinations of two or more atoms  are held together by chemical bonds. A molecule is the smallest portion of a substance which showcases all the properties of the substance.

Explanation:

zvonat [6]3 years ago
4 0
A molecule is the smallest particle of an element or compound which has the properties of that element or compound. 2. A molecule is capable of independent existence.
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Which product is typically made using softwood?
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What is the classification of a solution of naoh with a ph of 8.3?
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Answer:

  • <u>Alkaline or basic solution </u>(alkaline and basic means the same)

Explanation:

According to the <em>pH</em>,  solutions may be classified as neutral, acidic, or alkaline (basic).

This table shows such classification:

pH               classification

  7                   neutral

> 7                   alkaline or basic

< 7                   acidic

Thus, since the pH of the solution is 8.3, which is greater than 7, the solution is classified as basic (alkaline).

Additionally, you must learn that pH is a logarithmic scale for the concentration of hydronium ions in the solution.

  • pH = - log [H₃O⁺]

You can calculate the concentration of hydronium ions using antilogarithm properties:

pH=-log[H_3O^+]\\ \\ {[H_3O^+]}=10^{-pH}\\ \\ {[H_3O^+]}=10^{-8.3}=0.00000000501

NaOH solutions are alkaline solutions, bases, according to Arrhenius model,  because they contain OH⁻ ions and release them when ionize in water.

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Hope that helps!!!!
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