Answer:
It is necessary because Trans-cinnamic is a limiting reagent in the mixture reaction while Bromine is the excess reagent
Explanation:
It is necessary to maintain excess bromine in the reaction mixture because Bromine is the excess reagent in the reaction mixture and if it's quantity is less it would consume the limiting reagent ( Trans-cinnamic ) completely . hence Bromine should maintain excess quantity in the reaction mixture
In a synthesis reaction<span> (also known as a composition </span>reaction<span>), two substances combine to form a larger substance. A good </span>analogy<span> of these </span>reactions<span> are dancers. ... In the simplest type of </span>synthesis reaction<span>, two elements combine to form a compound.</span>
Acceleration is defined as velocity per unit time.


Here, a=acceleartion,
v=velocity=36 m/s
t=time=12 s



A car at rest ends accelerates for 12 seconds. After this time the car is going 36 m/s. So acceleration that is a=3 ms⁻².
Answer:
They apear this way because of refraction
Explanation: