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The technical name is comedone. The common name is black heads.
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∙ 13y ago
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Does ammonia has impurities?
Ammonia does not have impurities in it
What is meant by organic impurities?
These are impurities as organic compounds in different materials.
What may happen to the boiling point of a substance if there are impurities present. Explain in terms of the nature of impurities.?
it might decrease or increase depends on the impurities added.:D
How do you remove impurities from caustic soda solution in water?
If you think to mechanical impurities- by filtering.
What are the impurities found on the surface of magnesium in the formula of magnesium oxide?
impurities such as nitrogen and carbondioxide
What is another word for impurities?
the chemicals had so many impurities that they were unable to conduct the tests.
How do you think crystals with more impurities will look compared to crystals with fewer impurities?
Chicken nuggests
Does salt have particles in it?
If you think to particles as impurities, non-refinned salt have particles of insoluble impurities.
How does fractional crystallization help in removing the impurities from a solid substance?
The impurities grab on to the growing crystals
What are suspended impurities and dissolved impurities?
Floating matter in water known as suspended impurities Salts , minerals, aquatic matter etc. They impart colour, turbidity & taste to water.
Is the phrase clean all impurities correct?
Not really. One doesn't clean an impurity, one removes it from something. So either "remove all impurities" or "clean (something) of impurities".
What are the impurities in the zirconium silicate?
These impurities are produced during the production process. They are mainly grouped into 4 categories. 1. Detrimental impurities like Fe2O3、TiO2 and Al2O3. 2. Basic harmless impurities like SiO2 and HfO2. 3. Trace alkali impurities like Na2O、K2O and P2O5. 4. Radioactive contaminants like Ra226, Th232 and K40.
