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2 years ago

The Chandra X ray Observatory

Chemistry

2 answers:

Art [367]2 years ago

7 0

<h2>It is a space telescope.</h2>

AlladinOne [14]2 years ago

6 0

The statement that describes NASA's Chandra X-ray Observatory is a space telescope.

Explanation:

Usually telescopes are used by the astronomer's to find objects which are placed in far places.

But Chandra X-ray observatory is the NASA's space telescope.

This telescope is used to find and discover advanced X-rays which are produced in the space due to explosion of stars, clusters and the matter around black hole in the hot regions.

Therefore, this NASA's Chandra X-ray Observatory is a space telescope.

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Why can characteristics properties be used to identify unknown substances

frozen [14]

Characteristic properties are used because the sample size and the shape of the substance does not matter.

5 0

2 years ago

I am a little confused

Sonbull [250]

The answer is D. I did that and i got it right.

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2 years ago

Read 2 more answers

Silicon carbide (SiC) is an important ceramic material made by reacting sand (silicon dioxide, SiO2) with powdered carbon at a h

makkiz [27]

Answer:

Percent yield of SiC is 77.0%.

Explanation:

Balanced reaction: $SiO_{2}+3C\rightarrow SiC+2CO$

Molar mass of SiC = 40.11 g/mol

Molar mass of $SiO_{2}$ = 60.08 g/mol

So, 100.0 kg of $SiO_{2}$ = $\frac{100.0\times 10^{3}}{60.08}$ moles of $SiO_{2}$ = 1664 moles of $SiO_{2}$

According to balanced equation, 1 mol of $SiO_{2}$ produces 1 mol of SiC

Therefore, 1664 moles of $SiO_{2}$ produce 1664 moles of SiC

Mass of 1664 moles of SiC = $(1664\times 40.11)g$ = 66743g = 66.74 kg (4 sig. fig.)

Percent yield of SiC = [(actual yield of SiC)/(theoretical yield of SiC)] $\times 100$ %

= $\frac{51.4kg}{66.74kg}\times 100$ %

= 77.0%

4 0

2 years ago

Which weather technology can detect rain in tropical storms and hurricanes that are within about 250 miles, estimate how much ra

masha68 [24]

The answer is Doppler Radar. Hope this helps!

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2 years ago

ANSWER PLEASE LIMIT TIME !!!! <br> What do earth and space have alike ?

marishachu [46]

Answer:

Great question, here are a few! (╯°▽°)╯ ┻━┻

Explanation:

1. Atmosphere, The first difference between the Earth and space is the atmosphere.

2. radiation (high level of dangerous particles)!

3. gravity (weightlessness in space)

4 0

2 years ago