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CaHeK987 [17]
2 years ago
11

What is one separation process that can be used to separate water from sand in a mixture?

Chemistry
1 answer:
alexandr1967 [171]2 years ago
3 0

Answer:

evaporation?

Explanation:

evaporate the water leaving behind the sand?

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At stp which gas will diffuse more readily than ne
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The Andes Mountains are found along the western coast of South America. Which kind of plate boundary is responsible for this mou
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The Nazca plate is converging with the South American plate.

Explanation:

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3 years ago
A solution is made using 148.5 g of dimethyl ether (MM = 46.07 g/mol) and 90.0 g of methanol (MM = 32.04 g/mol). What is the mol
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Answer:

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Explanation:

Mole fraction can be calculated using the formula:

Mole fraction = number of moles of solute ÷ number of moles of solvent and solute (solution).

In this question, solute is dimethyl ether while the solvent is methanol.

Mole (n) = mass (M) ÷ molar mass (MM)

Mole of solute (dimethyl ether) = 148.5 ÷ 46.07

= 3.22moles.

Mole of solvent (methanol) = 90 ÷ 32.04

= 2.81moles.

Total moles of solute and solvent = 3.22 + 2.81 = 6.03moles.

Mole fraction of dimethyl ether = number of moles of dimethyl ether ÷ number of moles of solution (dimethyl ether + methanol)

Mole fraction = 3.22/6.03

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What will happen to the flow of blood in blood vessels (pulse) if heart beat rate increase
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Answer:

"Low levels of the hormone epinephrine, also called<em><u> adrenaline</u></em>, cause blood vessels to relax and widen. High levels of this same hormone, along with the hormone norepinephrine, cause the blood vessels to narrow and the heart rate to rise, <u><em>increasing blood pressure</em></u>."

Explanation:

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