Answer:
The main competing reaction when a primary alkyl halide is treated with alcoholic potassium hydroxide is SN2 substitution.
Explanation:
The relative percentage of products of the reaction between an alkyl halide and alcoholic potassium hydroxide generally depends on the structure of the primary alkylhalide. The attacking nucleophile/base in this reaction is the alkoxide ion. Substitution by SN2 mechanism is a major competing reaction in the elimination reaction intended.
A more branched alkyl halide will yield an alkene product due to steric hindrance, similarly, a good nucleophile such as the alkoxide ion may favour SN2 substitution over the intended elimination (E2) reaction.
Both SN2 and E2 are concerted reaction mechanisms. They do not depend on the formation of a carbocation intermediate. Primary alkyl halides generally experience less steric hindrance in the transition state and do not form stable carbocations hence they cannot undergo E1 or SN1 reactions.
SN2 substitution cannot occur in a tertiary alkyl halides because the stability of tertiary carbocations favours the formation of a carbocation intermediate. The formation of this carbocation intermediate will lead to an SN1 or E1 mechanism. SN2 reactions is never observed for a tertiary alkyl halide due to steric crowding of the transition state. Also, with strong bases such as the alkoxide ion, elimination becomes the main reaction of tertiary alkyl halides.
Answer:
1. b
2. a
Explanation:
1. The density of an object represents the mass per unit volume of the object. A density of 0.45 g/mL means that 1 mL of the object weighs 0.45 g, 1.000 g/mL means 1 mL weighs 1 g, etc.
<u>A density of 35,885 g/mL means that 1 mL of the object weighs 35,885 g. This is a ridiculously high amount of weight for an object with a volume of 1 mL and seems not reasonable. It is highly unlikely that such a substance exists in nature.</u>
2. <u>Considering the fact that only rock would sink in water of all the substances from a - d, it thus means that rock would have the greatest density.</u> Oil, oxygen, and ice will all float on water, meaning that they are less dense than water.
the very bottom of the ocean and they are relevant by most of the animals feed off of the animals that come out of he vents
Polysaccharides are healthier for the body than mono- or disaccharides are as glucagon is a type of polysaccharide found in animal tissues and is usually found in small amounts in meat from poultry and diet.
<h3>What do you need for both monosaccharides and polysaccharides? </h3>
The Importance of Monosaccharides and Polysaccharides Both are essential as the primary food and dietary energy sources for all living organisms. Cell-wall polysaccharides make up the fibers that humans eat, and monosaccharides add sweetness to food.
- Glycogen – This is a type of polysaccharide found in animal tissues and is usually found in small amounts in meat from poultry and diet. Most of the glycogen is stored in the liver, not in the muscles unless you eat a lot of liver and meat, so I said it was a small amount.
- In general, you may not be consuming too much glycogen. Starch (amylose and amylopectin) – It is found primarily in plants and is composed of two structurally distinct polysaccharides called amylose and amylopectin.
- Amylose is a linear polysaccharide, but amylopectin has many branched chains. Fiber-This is primarily cellulose, also a linear polysaccharide, a major structural component of plant cell walls.
- Humans cannot digest this carbohydrate because they lack the digestive enzymes needed to digest it.
Read more about carbohydrates:
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