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Anna007 [38]
3 years ago
11

Which substance is a combination of different atoms?

Chemistry
2 answers:
coldgirl [10]3 years ago
5 0

Answer:

compound

Explanation:

koban [17]3 years ago
4 0
It is also a compound<span> because the atoms that make water are </span>not<span> all the same - some are oxygen and some are hydrogen. Oxygen in the atmosphere is a molecule because it is made from two atoms of oxygen. It is </span>not a compound<span> because it is made from atoms of only one element - oxygen.</span>
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Considering the definition of pOH and strong base, the pOH of the aqueous solution is 1.14

The pOH (or potential OH) is a measure of the basicity or alkalinity of a solution and indicates the concentration of ion hydroxide (OH-).

pOH is expressed as the logarithm of the concentration of OH⁻ ions, with the sign changed:

pOH= - log [OH⁻]

On the other hand, a strong base is that base that in an aqueous solution completely dissociates between the cation and OH-.

LiOH is a strong base, so the concentration of the hydroxide will be equal to the concentration of OH-. This is:

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Replacing in the definition of pOH:

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<u><em>pOH= 1.14 </em></u>

In summary, the pOH of the aqueous solution is 1.14

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