The physical property that is in use when substances are separated using a screen is differences in particle size of the substances.
<h3>What are physical properties?</h3>
The term "physical properties " refers to those properties that are not studied by changing the composition of the substance. Most separation methods depend on differences in physical properties.
The physical property that is in use when substances are separated using a screen is differences in particle size of the substances.
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It is a) a non metal.
Remember: most metals are malleable (the opposite of brittle) and conduct electricity well.
Conjugated dienes routinely undergo 1,2 and 1,4 addition reactions with a variety of electrophilic reagents; this suggests that electrophilic reagents are likely intermediates during these reactions.
Two double bonds and one single bond divide a conjugated diene into two halves. Nonconjugated (Isolated) Dienes have more than one single bond separating two double bonds. Two double bonds are joined to the same atom to form cumulated dienes.
Reagents that function by acquiring electrons or sharing electrons that once belonged to a foreign molecule are referred to as electrophilic reagents, or electrophiles, in some cases. Electrophiles are molecules with a positive charge and a lack of electrons that can react by exchanging electron pairs with nucleophiles, which have many electrons. Epoxides, hydroxy amines, nitroso and azoxy derivatives, nitrenium ions, and elemental sulfur are significant electrophiles.
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By there pH . a pH below 7 is acidic . Above 7 is basic. If it’s right at 7 it’s neutral.
