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Morgarella [4.7K]
3 years ago
6

Select the correct answer.

Chemistry
1 answer:
MatroZZZ [7]3 years ago
7 0
Answer: The center of the Milky Way

Explanation: It's located about two-thirds of the way out from the center of the Milky Way which is about 28,000 light–years away.
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HELP ASAP<br> Pleaseeee!!!!
kow [346]

Answer:

1 Second

Explanation:

10 meters per second for 10 meters, you just divide.

8 0
3 years ago
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Places the following layers in sequence from the outermost layer to the innermost layer ?
Elena L [17]
Crust, Mantle, Outer core, Inner Core
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3 years ago
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Why resolution power in TEM microscope is higher than SEM microscope
sleet_krkn [62]

Answer:

Here's what I get.

Explanation:

Two factors:

1. Higher accelerating voltages

Both types use a beam of accelerated electrons as a source of illumination.

Resolution depends on the wavelength of the electron beam. The shorter the wavelength, the smaller the objects you can "see."

SEMs usually use acceleration voltages up to 30 kV, while TEMs can set them as high 300 kV. Thus, the electron wavelengths in TEMs are shorter by a factor of 10.

2. Less spherical aberration

Spherical aberration degrades the quality of the image. It decreases as wavelength decreases, so you can push the magnification higher with a TEM without losing image quality.

3 0
3 years ago
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That gas can be used in mixtures with nitrogen gas to ripen bananas just before they are put on the grocery shelf. This mixture
Sphinxa [80]

Answer:

C2H4

Explanation:

The image attached shows a detailed solution of the above problem. The empirical formula shows the ratio of the atoms of each element present.

5 0
3 years ago
Name the element described in each of the following:
serg [7]

The element is Si (Silicon)

More about Silicon

silicon (Si), a nonmetallic chemical element in the carbon family (Group 14 [IVa] of the periodic table). Silicon makes up 27.7 percent of Earth’s crust; it is the second most abundant element in the crust, being surpassed only by oxygen.

Silicon is a naturally occurring mineral. It's the second-most abundant element on earth after oxygen. Food sources include water, fruits, and vegetables.

Silicon supplements are sometimes used as medicine. It's not clear if silicon has a function in the human body. But there's some evidence it might have a role in forming bone and collagen.

People use silicon for weak bones (osteoporosis), aging skin, and many other conditions, but there is no good scientific evidence to support most of these uses.

Do not confuse silicon with silicone. Silicone is a group of materials resembling plastic that are used to make medical devices.

To learn more about Silicone

brainly.com/question/27002111

#SPJ4

7 0
2 years ago
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