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Why lah reactions can be done in ethers only why not in other solvents?
Wiki User
∙ 12y ago
Solubility. LAH is not soluble in other solvents which would otherwise be appropriate.
Wiki User
∙ 12y ago
Lah reactions, which involve the addition of an alkyl lithium compound to a carbonyl compound to form a new carbon-carbon bond, are typically conducted in ethers like diethyl ether because ethers can solvate the reactive lithium cation and allow for the reaction to proceed smoothly. Ethers are less acidic and less likely to react with the alkyl lithium reagent compared to other solvents such as alcohols, which can deactivate the alkyl lithium reagent by protonation.
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What is degreasing and how is it used?
Degreasing is the process of removing grease, oil, or lubricants from a surface to prepare it for painting, welding, or other processes that require a clean surface. It is commonly done using solvents, detergents, or mechanical methods such as scrubbing or blasting to ensure the surface is free from contaminants.
Is the nucleus involved in chemical reactions?
No, the nucleus is not directly involved in chemical reactions. Its main role is to store and protect the genetic material of the cell. Chemical reactions primarily occur in the cytoplasm of the cell where enzymes and molecules interact.
How can a chemical reactions used in water?
Chemical reactions can be used in water by dissolving reactants in water to facilitate the reaction. Water can act as a solvent or a medium for the reactants to come into contact and react with each other. The properties of water, such as its polarity and ability to form hydrogen bonds, can also influence the outcome of chemical reactions that occur in water.
Two neutrons added to an atom of the element iridium result in?
an isotope of iridium with two more neutrons, which may affect the stability and properties of the nucleus.
Why noble gases participate in chemical reactions?
No, because they have a full valence shell. Chemical reactions proceed because atoms wish to share or exchange electrons. If an atom's valence shell is full, they tend not to do this under normal circumstances.
What solvents can dissolve polypropylene?
hexane
What is a chemistry reactions?
Chemical reactions are different molecules reacting with each other to form one or more products. Chemical reactions are done in everyday life from your breathing to digesting food to combusting gasoline to drive.
Is it possible for atomsin two compounds to replace each other?
Yes, it is possible. It is done in double displacement reactions.
Name two organic substances with inflammable vapours?
It depends on the work being done in the lab. I have a lab here at work that I process printing plates in, and we don't have any solvents at all. Biology labs have some solvents--they all have at least one kind of alcohol, and the other solvents depend, once again, on the work the lab does. A fuels lab will have many flammable solvents because the things they develop are solvents in their own right.
Two neutrons added to an atom of the element iridium result in?
an isotope of iridium with two more neutrons, which may affect the stability and properties of the nucleus.
What type of experiments should be done in a fume hood?
Experiments involving hazardous chemicals, gases, or volatile substances that pose a health or safety risk should be done in a fume hood. This includes experiments that generate fumes, vapors, or aerosols that could be harmful if inhaled or have the potential to create a chemical reaction with the air.
Is the nucleus involved in chemical reactions?
No, the nucleus is not directly involved in chemical reactions. Its main role is to store and protect the genetic material of the cell. Chemical reactions primarily occur in the cytoplasm of the cell where enzymes and molecules interact.
How do you dissolve plastics?
Plastics are not easily dissolved as they are long chains of repeating molecules. Some plastics can be dissolved using harsh chemicals such as strong acids or solvents, but this can be hazardous and should be done with caution and proper safety equipment. It is generally not recommended to dissolve plastics due to environmental and health concerns.
What is an another name for exothermic and for endothermic reactions?
it is a Many chemical reactions release energy in the form of heat, light, or sound. These are exothermic reactions. Exothermic reactions may occur spontaneously and result in higher randomness or entropy (ΔS > 0) of the system. They are denoted by a negative heat flow (heat is lost to the surroundings) and decrease in enthalpy (ΔH < 0). In the lab, exothermic reactions produce heat or may even be explosive. There are other chemical reactions that must absorb energy in order to proceed. These are endothermic reactions. Endothermic reactions cannot occur spontaneously. Work must be done in order to get these reactions to occur. When endothermic reactions absorb energy, a temperature drop is measured during the reaction. Endothermic reactions are characterized by positive heat flow (into the reaction) and an increase in enthalpy (+ΔH).
Things that can be done to speeding up chemical reactions?
Heat or raise the concentration of the reactants, or add a catylast.
This was done in response to the violent reactions whites had against the Montgomery Bus Boycott and against the?
Freedom Rides
Where can you find unununium?
so far with the research that i have done its only common in areas were nuclear reactions are common.
