In the following orbital the lone pair on each N atom is present:
N1: sp3,
N2: p,
N3: p,
N4: sp2,
N5: sp2
Sitagliptin is an anti-diabetic drug used to treat type 2 diabetes and is marketed under the brand names Januvia and others. One carbon atom has no pi bonds, while the first nitrogen atom is linked to two hydrogen atoms. It thus possesses sp3 hybridization.
The second nitrogen atom possesses a single pair of electrons and is bound to three other atoms. It is hence sp2 hybridized. The nitrogen atoms in positions 3, 4, and 5 have sp2 hybridization.
The lone pair of nitrogen in the first nitrogen atom is in the sp3 orbital. The second and third nitrogen atoms' only pair of electrons are in p-orbitals. The fourth and fifth nitrogen atoms' lone pair of electrons are in sp2 orbitals.
Here is another question with an answer similar to this about Sitagliptin: brainly.com/question/28275161
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• how long it has been occurring
• if it gets worse at a particular point in the day
•Do you get chest pain, palpitations or ankle swelling?
•Does it come on or get worse when you lie flat?
•Does anything bring it on? For example, pollen, pets or medication?
•Do you smoke?
•Do you also have a cough, or bring up phlegm?
•How active are you usually?
•What’s your job or occupation?
•Is your breathlessness related to certain times at work?
•Do you have a history of heart, lung or thyroid disease or of anaemia?
•Have you made any changes in your life because of your shortness of breath?
•Do you feel worried or frightened, depressed or hopeless?
•What have you done to help you cope with the way you’re feeling?
•Does it come and go or is it there all the time?
•Is there any pattern to your breathlessness?
Answer:
D is the answer i only know because of gabapentin
Answer:
_measure intelligence.
Explanation:
Binet and his student Simon first created it because they were asked by the French government to come up with a way to identify children who were slow/behind. So, they invented a scale called the Binet Simon scale dedicated to measuring intelligence.
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Answer:
The correct answer to the question: An abnormal sound (murmur) due to narrowing or stenosis of the mitral valve might be heard during:____, would be, A: Diastole.
Explanation:
It is first important to know that a murmur comes from the sound the blood makes as it passes either through a hardened tissue, like is the case of stenosis of a valve, or because it leaks back from where it came, due to regurgitation, because the valve is defective and cannot close properly. During the cardiac cycle, there is a process of systole, and of diastole, that ensure the filling and expulsion of the blood inside the heart towards the body, and from the body into the heart, so that a constant flow is ensured. In the process of filling and emptying, two sets of valves, the mitral and tricuspid, and the aortic and pulmonary, open and close to allow blood flow towards the different chambers of the heart, and out into the blood vessels of the body, and prevent the blood from returning towards where it came. In the case of mitral stenosis, which is the toughening of the mitral valve of the heart, the blood flowing through it makes a murmuring sound that can be caught up through a stethoscope. This sound is prominent during diastole, and that is why medically this murmur is known as a diastolic murmur.
