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Katyanochek1 [597]
3 years ago
13

Is waste water a pure subtance or a mixture

Chemistry
1 answer:
Alla [95]3 years ago
6 0
The pure substance of water mixes with the waste. The waste does not dissolve into the water, therefore it is a mixture.

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<h3>Further explanation   </h3>

Isotopes are atoms whose no-atom has the same number of protons while still having a different number of neutrons.  

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Atomic mass is the average atomic mass of all its isotopes  

In determining the mass of an atom, as a standard is the mass of 1 carbon-12 atom whose mass is 12 amu  

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The average atomic mass of boron :

\tt avg~mass=0.8474\times 10.0129+0.1526\times 11.0093\\\\avg~mass=10.431~amu

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