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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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Actual value= -273 Experimental value= -274

Maurinko [17]

Answer:

<h2>When measuring data, the result often varies from the true value. Error can arise due to many different reasons that are often related to human error, but can also be due to estimations and limitations of devices used in measurement. Regardless, in cases such as these, it can be valuable to calculate the percentage error. The computation of percentage error involves the use of the absolute error, which is simply the difference between the observed and the true value.</h2>

Explanation:

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3 years ago

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Elza [17]

Answer: There are $21.08\times 10^{23}$ molecules in 63.00 g of $H_2O$

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number $6.023\times 10^{23}$ of particles.

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{63.00g}{18g/mol}=3.5moles$

1 mole of $H_2O$ contains = $6.023\times 10^{23}$ molecules

Thus 3.5 moles of $H_2O$ contains = $\frac{6.023\times 10^{23}}{1}\times 3.5=21.08\times 10^{23}$ molecules.

There are $21.08\times 10^{23}$ molecules in 63.00 g of $H_2O$

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3 years ago

If scientists want to determine if a skin cream is effective against fighting acne, what would be the independent variable?

lina2011 [118]

Answer:skin cream

Explanation:

the independent variable is the variable that is always changed or manipulated. in this case the skin cream is the independent variable.

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3 years ago

Which state of matter undergoes changes in volume most easily

lina2011 [118]

Gases and plasma's undergo changes in volume most easily. In contrast, liquids and solids have fixed volumes, although liquids do not have fixed shapes. Gases and plasma's expand or contract to fill their containers.

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3 years ago

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Tresset [83]

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plz brain list me 5 star me thank me but thank you

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3 years ago