3 years ago

Describe how you would prepare a supersaturated solution

1 answer:

7 0

Answer:

A supersaturated solution contains more dissolved solute than required for preparing a saturated solution and can be prepared by heating a saturated solution, adding more solute, and then cooling it gently. Excess dissolved solute crystallizes by seeding supersaturated solution with a few crystals of the solute.

Explanation:

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The reaction 2Mg(s) + O2(g) --> 2MgO(s) is a

liq [111]

Answer:

Double-Replacement Reaction

Explanation:

Mg is Oxidized, and O2 is the cause of the oxidation, hence the Oxidizing agent. That means that O2 is Reduced and Mg is the cause naming it the Reducing agent.

OIL - RIG Oxidation is Loss-Reduction is Gain

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3 years ago

Which of the following statements is not true of the process of nuclear fission? A.It is the process used in most nuclear power

Nady [450]

The statement in option B is not correct. B is the correct answer. This is because nuclear fission usually occur in large unstable isotopes, which are bombarded with high speed particles like neutrons, which make them to split into smaller particles. The statement in option A, C and D are true about nuclear fission.

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3 years ago

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A process stream contains 450 mol/s benzene and 375 mol/s toluene. Calculate the mole fraction of benzene in the process stream.

Tema [17]

Answer:

0.5455

Explanation:

The moles of benzene in the process stream in 1 sec = 450 moles

The moles of toluene in the process stream in 1 sec = 375 moles

So, according to definition of mole fraction:

$Mole\ fraction\ of\ benzene=\frac {n_{benzene}}{n_{benzene}+n_{toluene}}$