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meriva
4 years ago
12

How does the HR diagram group stars?

Chemistry
1 answer:
emmasim [6.3K]4 years ago
6 0
  it groups it by >> luminosity, spectral type, color, temperature.
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How many moles of nitrogen gas are there in 16.8 L of this gas at STP?
sweet-ann [11.9K]
According to Avogadro's Law, same volume of any gas at standard temperature and pressure will occupy same volume. And one mole of any Ideal gas occupies 22.4 dm³ (1 dm³ = 1 L).

Data Given:

                  n = moles = ?
                  V = Volume = 16.8 L

Solution:
               
As 22.4 L volume is occupied by one mole of gas then the 16.8 L of this gas will contain....

                           = ( 1 mole × 16.8 L) ÷ 22.4 L
                    
                           = 0.75 moles

Result:
           
16.8 L of Nitrogen gas will contain 0.75 moles at standard temperature and pressure.
4 0
4 years ago
What is the function of the glomerulus?
In-s [12.5K]
The glomerulus is a part of the Malphigian body in which blood enters through the renal artery (afferent arteriole) and the substance that needs to be excreted along with water diffuses into the bowman's capsule. 
It carries out the function of ULTRAFILTRATION.
8 0
3 years ago
Which response gives the products of hydrolysis
Pie

Answer:

NH₃ and H⁺

Explanation:

The dissociation of NH₄Cl will lead to two ions , i.e. , NH⁴⁺  and Cl⁻ .

Hence , the reaction is -

NH₄Cl  →  NH⁴⁺   +   Cl⁻

We can conclude that  NH₄Cl can be formed from the ions , NH⁴⁺  and Cl⁻

Hence ,

According to the reaction ,

NH⁴⁺ + H₂O  ⇆  NH₃ + H₃O⁺

Therefore ,

The reactant that will lead to the formation of NH₄Cl are -  NH₃ and H⁺

8 0
3 years ago
Read 2 more answers
Different of an element have different numbers of neutrons.
inna [77]

Answer:

Isotopes  

Explanation:

This is the definition of isotopes: they are atoms of the same element that contain different numbers of neutrons.

4 0
4 years ago
Convert a volume of 2250cm3 to cubic meters
Taya2010 [7]
2250cm3= 2250/1000000m3=.00225m3
8 0
3 years ago
Read 2 more answers
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