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xxMikexx [17]
3 years ago
5

Why is blood considered to be a suspension?

Chemistry
1 answer:
horrorfan [7]3 years ago
4 0
Because there are several kind of cells in the blood, like red blood cell and white blood cell. They flow in the blood and will not precipitate, So it is called suspension.
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The partial pressures of the gases in a mixture are 0.255 atm 0, 3.24 atm Ny,
katovenus [111]
<h3>Answer:</h3>

4.945 atm

<h3>Explanation:</h3>
  • Based on Dalton's law of Partial pressure, the total pressure of a mixture of gases is equivalent to the sum of individual partial pressures of the gases in the mixture.
  • That is;

Pt = P1+P2+P3+P4+............+ Pn

In this case;

Partial pressure of Oxygen, P(O) = 0.255 atm

Partial pressure of N, P(N) = 3.24 atm

Partial pressure of Ar, P(Ar) = 1.45 atm

Therefore;

P(total) = P(O) + P(N) + P(Ar)

           = 0.255 atm + 3.24 atm + 1.45 atm

           = 4.945 atm

Therefore, the total pressure of the mixture is 4.945 atm

6 0
4 years ago
- Express each number in scientific notation
natita [175]

Answer:

Explanation:

oof

8 0
3 years ago
How many moles of co2 are there in a 50.0 dm3 sample of the gas at a pressure of 100.0 kpa and a temperature of 50°c?
Rudiy27

Answer:

  • 609 mol

Explanation:

<u>1) Data:</u>

a) n = ?

b) V = 50.0 dm³ = 50.0 liter

c) p = 100.0 kPa

d) T = 50 °C

<u>2) Physical law:</u>

  • Ideal gas law: pV = nRT,

<u>3) Constants:</u>

  • R = 0.08206 atm-liter / K-mol

<u>4) Unit conversions:</u>

  • T = 50 + 273.15 K = 323.15 K

  • P = 100.0 kPa × (1 amt  /101,325 kPa) = 0.9869 atm

<u>5) Solution:</u>

  • pV = nRT ⇒ n = pV / (RT)

  • n = 0.9869 atm × 50.0 liter / (0.08206 atm-liter /K-mol × 323.15 K)

  • n = 609 mol ← answer
7 0
3 years ago
Which of the following is true for a limiting reactant?
lbvjy [14]

Answer:

It is a reactant that produces smaller amount of product.

Explanation:

" The limiting reactant is a reactant that control the amount of product in chemical reaction because of its smaller amount"

Consider the example:

2 H₂ + O₂   →   2H₂O

two moles of hydrogen react with one moles of oxygen and produces two moles of water. when we take two mole of hydrogen and two mole of oxygen than again two mole of water is produced because hydrogen is limiting reactant and one mole of oxygen left un reacted.

Identification of limiting reactant:

Calculate the number of moles of reactant.

compare it with number of moles of product with help of balance chemical equation.

identify the reactant which produces less number of moles of product.

6 0
3 years ago
Which option below describes a chemical property of a substance?
boyakko [2]

Answer:

C

Explanation:

Rust is a chemical change (reaction) all of the other options only change the state meaning that it is a physical reaction.

4 0
3 years ago
Read 2 more answers
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