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Nadya [2.5K]
3 years ago
8

¿Que es bacteria y un virus ?es para hoy por favor ayúdeme

Chemistry
2 answers:
swat323 years ago
4 0

i) Las bacterias son organismos microscópicos unicelulares que prosperan en diversos entornos. Estos organismos pueden vivir en el suelo, el océano y dentro del intestino humano.

ii) Un virus es un agente infeccioso submicroscópico que se replica solo dentro de las células vivas de un organismo. Los virus infectan todas las formas de vida, desde animales y plantas hasta microorganismos, incluidas bacterias y arqueas.

VLD [36.1K]3 years ago
3 0
Los antibióticos solo son necesarios para tratar ciertas infecciones causadas por bacterias. Las enfermedades virales no pueden tratarse con antibióticos. Cuando tomar antibióticos no sea lo indicado, pídale a su profesional de atención médica consejos sobre cómo aliviar los síntomas y sentirse mejor.
Enfermedad común
Causa común
¿Se necesitan antibióticos?
Bacteria
Bacteria o virus
Virus
Infección estreptocócica de la garganta (strep)
Sí
Tosferina
Sí
Infección de las vías urinarias
Sí
Sinusitis
Tal vez
Infección del oído medio
Tal vez
Bronquitis/resfriado con congestión de pecho (en niños y adultos)*
No*
Resfriado común/moqueo
No
Dolor de garganta (excepto por infección estreptocócica)
No
Influenza (gripe)
No
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In which of the following compounds does the carbonyl stretch in the IR spectrum occur at the lowest wavenumber?
klio [65]

Answer:

a. Cyclohexanone

Explanation:

The principle of IR technique is based on the <u>vibration of the bonds</u> by using the energy that is in this region of the electromagnetic spectrum. For each bond, there is <em>a specific energy that generates a specific vibration</em>. In this case, you want to study the vibration that is given in the carbonyl group C=O. Which is located around 1700 cm-1.

Now, we must remember that the <u>lower the wavenumber we will have less energy</u>. So, what we should look for in these molecules, is a carbonyl group in which less energy is needed to vibrate since we look for the molecule with a smaller wavenumber.

If we look at the structure of all the molecules we will find that in the last three we have <u>heteroatoms</u> (atoms different to carbon I hydrogen) on the right side of the carbonyl group. These atoms allow the production of <u>resonance structures</u> which makes the molecule more stable. If the molecule is more stable we will need more energy to make it vibrate and therefore greater wavenumbers.

The molecule that fulfills this condition is the <u>cyclohexanone.</u>

See figure 1

I hope it helps!

4 0
4 years ago
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C i think i got this off of usa test prep in class
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I'm pretty sure (C) Nitrogen is a compound.

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