A primary amine contains a five-membered carbon ring. The degree of unsaturation for the five-membered carbon ring is equal to three. In the chemical formula, there are seven carbon atoms. Determine its chemical formula.
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Ответ:
C₇H₁₁N
Explanation:
To find the chemical formula, first, let's evaluate the given conditions.
1. Is a primary amine:
This means that the amine is connected to a carbon, like NH₂-R
2. The degree of unsaturation of the five-membered carbon ring is equal to three:
One of the degrees of unsaturation is for the five-membered carbon ring, the other two are for pi-bonds. This means that the five-membered carbon ring has 2 pi-bonds inside.
3. There are seven carbon atoms:
Five of these seven carbons are for the carbon ring and the other two are bonded to the primary amine.
From all of the above, we have that the chemical formula is:
C₅H₅-C₂H₄-NH₂ = C₇H₁₁N
I hope it helps you!
Ответ:
It will decrease
Explanation:
As the snowball gets bigger, the kinetic energy of the body begins to reduce appreciably.
The condition given in this problem is constant speed.
At constant speed, the snowball is not accelerating and there is no external force acting appreciably on the ball.
Now, we know that;
K.E = m v²
m is the mass of the ball
v is the velocity of the ball
In this scenario, the velocity of the ball is constant and not changing. But the mass of the ball begins to increase, eventually, the kinetic energy of the ball will reduce.
The increasing mass without an appreciable increase in velocity will bring the body to rest as a result of increase inertia of the body.