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2 years ago

How are NGC 1427A and U different? How are they the same?

Chemistry

2 answers:

irga5000 [103]2 years ago

5 0

Answer:

Sample Response: NGC 1427A has no general shape, so it is an irregular galaxy. U has a bulge in the center and arms, so it is a spiral galaxy. They are similar in that both contain plenty of dust and gas. Both also have active star-forming sites.

Explanation:

Which ideas did you include in your answer? Check all that apply.

✅ NGC 1427A is an irregular galaxy.

✅ U is a spiral galaxy.

✅ Both galaxies contain plenty of dust and gas.

✅ Both galaxies have active star-forming sites.

Ik I'm late but YW

agasfer [191]2 years ago

3 0

Answer:

that looks pretty and also well NGC 1427A has no general shape, so it is an irregular galaxy. U has a bulge in the center and arms, so it is a spiral galaxy. They are similar in the both certain plenty of dust and gas. Both also have active star-forming sites.

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Exposing a 250 mL sample of water at 20.∘C to an atmosphere containing a gaseous solute at 27.59 kPa resulted in the dissolution

ElenaW [278]

Answer : The solubility of this gaseous solute will be, $5.18\times 10^{-5}g/mL$

Explanation :

First we have to calculate the concentration of solute.

$\text{Concentration of solute}=\frac{Mass}{Volume}=\frac{4.51\times 10^{-3}g}{250mL}=1.80\times 10^{-5}g/mL$

Now we have to calculate the Henry's law constant.

Using Henry's law :

$C=k_H\times p$

where,

C = concentration of solute = $1.80\times 10^{-5}g/mL$

p = partial pressure = 27.59 kPa

$k_H$ = Henry's law constant = ?

Now put all the given values in the above formula, we get:

$1.80\times 10^{-5}g/mL=k_H\times (27.59kPa)$

$K_H=6.52\times 10^{-7}g/mL.kPa$

Now we have to calculate the solubility of this gaseous solute when its pressure is 79.39 kPa.

$C_{(79.39kPa)}=k_H\times p$

$C_{(79.39kPa)}=(6.52\times 10^{-7}g/mL.kPa)\times (79.39kPa)$

$C_{(79.39kPa)}=5.18\times 10^{-5}g/mL$

Therefore, the solubility of this gaseous solute will be, $5.18\times 10^{-5}g/mL$

7 0

2 years ago

There are islands in the ocean that grow larger the Hawaiian islands are good examples of this the reason that the islands were

vredina [299]

Explanation:

The reasons that islands formed are still growing is simply because newer materials are being added to them.

A growing earth is as a result of addition of more materials arising from the mantle.
Generally, Volcanic islands forms as a result of magma that reaches the surface or ocean floor from deeper part of the earth.
This usually occurs in places around a plate boundary where materials upwells from the asthenosphere or shallow crustal melting.
As more materials are being melted, more also reaches the surface and continues to make the Island grow.

Learn more:

Volcanic eruptions brainly.com/question/5055821

#learnwithBrainly

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3 years ago

Why is boiling water a physical change

Harrizon [31]

Answer:

Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O).

Explanation:

6 0

2 years ago

How many moles are there in 545g of <img src="https://tex.z-dn.net/?f=" id="TexFormula1" title="" alt="" align="absmiddle" class

Pachacha [2.7K]

answer: 3.40625 moles

Explanation: see the attached pics

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2 years ago

PLEASE HELP!!! Which type of substance is gold an example of?

dmitriy555 [2]

Answer:

Hello!

Gold is a chemical element with symbol Au (from Latin: aurum) and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element.

So in short, the Correct Answer will be (D) an Element.

Hope that Helps! Have A Wonderful Day! ☺

Explanation:

7 0

2 years ago

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