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USPshnik [31]
3 years ago
11

What is a process used to separate homogeneous mixtures using physical changes​

Chemistry
1 answer:
navik [9.2K]3 years ago
6 0

Answer:

Evaporation

Explanation:

with the help of evaporation , the liquid components are separated out from solid components easily .

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What is the colour of litmus in a solution of ammonium hydroxide?​
sammy [17]

Answer:

Red litmus turns blue

Explanation:

Hope it helps

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One atom of silicon can properly be combined in a compound with
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<span>One atom of silicon can properly be combined in a compound with two atoms of oxygen.</span>
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Assume that Na+ is being transported across a membrane via facilitated diffusion. Which of the following conditions would allow
lesya [120]

Answer:

<h2>4. Na+ diffusing toward the side of the membrane with Cl− and 50% less Na+.</h2>

Explanation:

Facilitated diffusion is a type of transport mechanism in which the special proteins are involved and play an important role in the transport of the atoms, ions or molecules. This mechanism is based on the electrochemical gradient differences. When this difference increase, then the transport of the sodium takes place because sodium ions are chemically attracted by chloride ions. In a facilitated diffusion process, no energy requirement takes place. This process occurs along the concentration gradient.

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3 years ago
Estructura molecular del óxido nitroso​
lozanna [386]

Answer:

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Explanation:

3 0
2 years ago
What is the temperature of CO2 gas if the average speed (actually the root-mean-square speed) of the molecules is 750 m/s?
erastova [34]

Answer:

992.302 K

Explanation:

V(rms) = 750 m/s

V(rms) = √(3RT / M)

V = velocity of the gas

R = ideal gas constant = 8.314 J/mol.K

T = temperature of the gas

M = molar mass of the gas

Molar mass of CO₂ = [12 + (16*2)] = 12+32 = 44g/mol

Molar mass = 0.044kg/mol

From

½ M*V² = 3 / 2 RT

MV² = 3RT

K = constant

V² = 3RT / M

V = √(3RT / M)

So, from V = √(3RT / M)

V² = 3RT / M

V² * M = 3RT

T = (V² * M) / 3R

T = (750² * 0.044) / 3 * 8.314

T = 24750000 / 24.942

T = 992.302K

The temperature of the gas is 992.302K

Note : molar mass of the gas was converted from g/mol to kg/mol so the value can change depending on whichever one you use.

3 0
2 years ago
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