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Marina86 [1]
3 years ago
14

Why is the circulatory system so important? please explain in own yours I keep getting copy and paste please don’t do that it’s

in own words for a reason )
Chemistry
1 answer:
expeople1 [14]3 years ago
7 0

<u>Importance </u><u>of </u><u>Circulatory </u><u>System</u>

  • This system helps in transportation of respiratory gases like O2 and CO2, nutrients, hormones, enzymes, minerals, waste products.
  • It helps in storage of essential substances for future use.
  • It also generates heat to the body.

Hope you could understand.

If you have any query, feel free to ask.

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A 20-liter container contains 2. 0 moles of oxygen at a pressure of 92 kpa. The average kinetic energy of translation of oxygen
Elodia [21]

The average kinetic energy of translation of oxygen molecules in the gas is 5.05 × 10⁻²¹

The given data is

n = 2

v = 20

P = 92

K.E = 3 / 2 KbT

      = 3 / 2 PV / N

     = 3 / 2 Pv / nNa

K.E = 3 / 2 × 9 × 1.013 × 10⁵ × 20 × 10⁻³ / 2 × 6.022 × 10²³

K. E = 5.05 × 10⁻²¹ J

<h3>Average kinetic energy</h3>

The average kinetic energy (K) is equal to one half of the mass of each gas molecule times the RMS speed squared

Hence, the average kinetic energy is 5.05 × 10⁻²¹ J

Learn more about the average kinetic energy on

brainly.com/question/3249165

#SPJ4

7 0
1 year ago
Which of the following statements is true? A)Unsaturated solutions will not dissolve more solute. B)For most substances, the sol
Nikitich [7]
B <span>For most substances, the solid state is more dense than the liquid state.</span>
6 0
3 years ago
Consider this reaction:
Len [333]
Dilution of hcl because less no of mole of hcl would be reacting to form zncl2
3 0
3 years ago
Read 2 more answers
Complete the lewis structures of the atoms and ions by adding electrons, as needed.
Lana71 [14]
Hope this helps! Na+ lost an electron, so I just left a "+" symbol to show that, and fluorine gained an electron, hence the "-" symbol.

3 0
4 years ago
Read 2 more answers
Please help!
inysia [295]

Answer:

NH3 —> base

We will see ammonia attach itself to silver and not the other way around, silver therefore accepts electrons. So, silver is a Lewis acid and ammonia is a Lewis base, so this reaction is complex as ammonia reacts with the silver cation .

Any group that contains an empty orbital in its valence shell can be considered a Lewis acid, but the bases do not differ in the Brønsted system from those in the Lewis system. Thus, acids are divided into types, including:

Simple Cations

Theoretically, they can be considered as acids and therefore we can also expect their acidic strength to increase for the following reasons:

1. By increasing the positive charge on the cation.

2. Increasing the charge of the nucleus from one atom to another in any period in the periodic table.

3. By decreasing the radius of the cation.

4. Decrease in the number of electron shells in the cation.

Therefore, the acidity of cations of any chain of transition elements increases with increasing atomic number when their positive charge is equal. There are some examples that show the reaction of cations as Lewis acids:

A) the reaction of the silver ion with ammonia

b) aluminum ion hydration

c) Adding alcohol to the lithium ion

D) formation of a ferric cyanide ion

I hope I helped you^_^

7 0
3 years ago
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