Answer:
It allows for easier division of the sister chromatids into two identical chromosomes, one for each cell, and helps to prevent mistakes. You just studied 2 terms!
Explanation:
Max of eight electrons in the 2nd level
Answer:
The electron in xenon are dropping more energy levels than helium
Toluene does not undergo reaction with bromine water due to aromatic stabilization.
<h3>What is addition reaction?</h3>
The term addition reaction refers to a type of reaction in which atoms or groups are added across the double bond. This type of reaction is common to alkenes and alkynes. By this reaction, unsaturated compounds are reduced to their saturated monologues.
We know that due to aromatic stabilization, compounds that contain the aromatic sextet do not undergo addition reaction such as the addition of bromine. Rather, what occurs in such systems is a substitution reaction under appropriate conditions.
It then follows that toluene does not undergo reaction with bromine water due to aromatic stabilization.
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Single and double replacement chemical reactions are similar by the fact that in both the types of reactions replacement of ions takes place in case of single displacement it is 1 ion while for double displacement it is 2 ions.
<h3>What are chemical reactions?</h3>
Chemical reactions are defined as reactions which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical reaction.
There are several characteristics of chemical reactions like change in color, change in state , change in odor and change in composition . During chemical reaction, there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical reactions:
1) inorganic reactions
2)organic reactions
3) biochemical reactions
During chemical reactions atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
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