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4 years ago

How does cleanse blood leave the kidney

1 answer:

8 0

The kidneys filter blood through a two-step process. Blood first enters a filter called the glomerulus, where excess fluid and waste products are redirected into the second area of filtration, known as the tubule. The tubule extracts any needed minerals that make it through the first filter and sends them back into the bloodstream, while the final product emerges from the tubule as urine.

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Explain how Niels Bohr’s observation of hydrogen’s flame test and line spectrum led to his model of the atoms containing electro

larisa86 [58]

In his observation, he notices that the hydrogen atom only emitted light of a fixed wavelength. He was able to discover that the electrons only orbit the nucleus of the atom at discrete orbits. When the electron ‘jumps’ from a higher to lower level orbit, it emits a wavelength. These wavelengths are unique to atoms of an element and can be used to identify them hence he led the way to the establishment of the light spectrum.

8 0

3 years ago

A source of zinc metal can be zinc ore containing zinc(II) sulfide. The ore is roasted in pure oxygen to produce the oxide and t

morpeh [17]

Answer:

32.7 grams of Zn will remained in the crucible after cooling.

Explanation:

$2ZnS+3O_2 \rightarrow 2ZnO + 2SO_2$ ..[1]

$ZnO+C\rightarrow Zn+CO$ ..[2]

Adding [1] + 2 × [2] we get:

$2ZnS+3O_2+2C \rightarrow 2Zn + 2CO+2SO_2$ ..[3]

Moles of ZnS in crucible = 0.50 mol

According to reaction [3]. 2 moles of ZnS gives 2 moles of Zn.

Then 0.50 moles of ZnS will give:

$\frac{2}{2}\times 0.50 mol=0.50 mol$ of Zn.

Mass of 0.50 moles of Zn =

= 0.50 mol × 65.4 g/mol =32.7 g

32.7 grams of Zn will remained in the crucible after cooling.

5 0

4 years ago

7. How do the data support your claim above? Explain your statement above. Be sure to refer to specific pieces of data from your

ella [17]

Answer:

if your title doesn't have enough information, make a list of the key words ... If you are not sure what should be included in each summary sentence, use ... Often you can present the hypothesis and the supporting reasoning in one paragraph. ... Describe specific parts of the procedure or data that contributed to your learning.

Explanation:

6 0

3 years ago

If a horse gallops 1 meter per second, how far can it travel in 1 minute? <br><br> pls help

Elan Coil [88]

Answer:

60 meters

Explanation:

6 0

3 years ago

A gas at 928 kpa, 129 C occupies a volume of 569 L. Calculate the volume at 319 kpa and<br> 32 C.

lisabon 2012 [21]

Answer:

1255.4L

Explanation:

Given parameters:

P₁ = 928kpa

T₁ = 129°C

V₁ = 569L

P₂ = 319kpa

T₂ = 32°C

Unknown:

V₂ = ?

Solution:

The combined gas law application to this problem can help us solve it. It is mathematically expressed as;

$\frac{P_{1} V_{1} }{T_{1} } = \frac{P_{2} V_{2} }{T_{2} }$

P, V and T are pressure, volume and temperature

where 1 and 2 are initial and final states.

Now,

take the units to the appropriate ones;

kpa to atm, °C to K

P₂ = 319kpa in atm gives 3.15atm

P₁ = 928kpa gives 9.16atm

T₂ = 32°C gives 273 + 32 = 305K

T₁ = 129°C gives 129 + 273 = 402K

Input the values in the equation and solve for V₂;

$\frac{9.16 x 569}{402} = \frac{3.15 x V_{2} }{305}$

V₂ = 1255.4L

4 0

4 years ago