What is the oxidation number of iodine in kio4? -7?
Answer: Fractional distillation is used to separate liquids with differing boiling points
Explanation:
Sublimation is used to separate volatile substance from a non volatile substance where volatile substance gets converted from solid to gas.
Fractional distillation is separation of a liquid mixture into fractions which differ in boiling points by means of distillation by use of a fractionating column.
Chromatography is a separation method where different rates of adsortion of different components is used to separate substances.
<span>Answer: an element and a compound.
An element is a pure substance formed by one kind of atoms (element).
A compound is a pure substance formed by several types of atoms(elements) that are connected by chemical bonds.
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Base is used in aldol condensation reaction
<u>because</u><u> </u><u>it</u><u> </u><u>is</u><u> </u><u>an</u><u> </u><u>organic</u><u> </u><u>reaction</u><u> </u><u>to</u><u> </u><u>form</u><u> </u><u>enolate</u><u> </u><u>ion</u><u>,</u><u> </u><u>the</u><u> </u><u>OH</u><u> </u><u>bond</u><u> </u><u>present</u><u> </u><u>in</u><u> </u><u>base</u><u> </u><u>help</u><u> </u><u>to</u><u> </u><u>remove</u><u> </u><u>Acidic</u><u> </u><u>hydrogen</u><u> </u><u>of</u><u> </u><u>enolate</u><u> </u><u>ion</u><u>.</u>