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Svetach [21]
2 years ago
10

What substance is not soluble in water, is derived from animal-based foods and synthesized by the body, and while circulating in

the blood, can accumulate on the inner walls of arteries and restrict blood flow
Chemistry
1 answer:
ludmilkaskok [199]2 years ago
5 0

Answer:

cholesterol

Explanation:

<u>Cholesterol is a sterol . It is biosynthesized by the animal cells and acts as an essential component of the structure of the animal cell membranes. </u>

Cholesterol serves also as precursor for biosynthesis of the steroid hormones,vitamin D and bile acid. It is the principal sterol which is synthesized by all the animals.

<u>Elevated levels of the cholesterol in the body's blood can lead to atherosclerosis that increases risk of heart attack by restricting the blood flow as it gets accumulated in the blood vessels.</u>

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Consider the following oxides: SO2, Y2O3, MgO, Cl2O, and N2O5. How many are expected to form acidic solutions in water? Consider
Snowcat [4.5K]

Answer:

Three of the five oxides are expected to form acidic solutions in water

Explanation:

We have different types of oxides : Acidic oxides, Basic oxides, Amphoteric oxides, Peroxides and Higher oxides.

Only acidic oxides will dissolve in water to give an acidic solution.

Considering the given oxides carefully,

  • SO2 will dissolve in water to produce H2SO3 which is acidic.

  • Y2O3 will dissolve in water to produce Yttrium(III) hydroxide which is basic.

  • MgO will dissolve in water only to produce Mg(OH)2 which is also basic.

  • Cl2O dichlorine mono oxide will dissolve in water to produce HClO which is acidic.

  • N2O5 will dissolve in water to produce HNO3 which is also acidic.

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2 years ago
Determine the total number of moles of ions in 40.0 ml of a 0.345 m solution of the strong electrolyte mgcl2
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A strong electrolyte like MgCl2 dissociates completely as per the following reaction:

MgCl_2 ----\ \textgreater \   Mg^{2+} + 2Cl^-

As you can see, from 1 molecule of MgCl2 produces 3 ions on dissociation.
So, 1 mole of MgCl2 produces 3 moles of ions.

Now, Moles of MgCl2 = Volume x Molarity

= 0.04 x 0.345   [Change volume to Litres]
= 0.0138 moles

Now, total moles of ions =  0.0138 x 3 = 0.0414
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What is the millimolar solubility of oxygen gas, o2, in water at 16 ∘c, if the pressure of oxygen is 1.00 atm?
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Partial pressure is the amount of pressure or force that is exerted by the atoms into the outer environment. it is dependent on the temperature and pressure of the present surroundings. in this case, we are asked in this problem to determine the partial pressure of oxygen at 16oC and 1 atm. We have to look into a solubility data table commonly found in handbooks and determined via experiments and correlations. According to literature, the value of the partial pressure is equal to 0.617 mM.This is under the assumption that the salinity of the water in which oxygen is dissolved is equal to zero.
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2 years ago
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Rina8888 [55]

Answer:

The equation for the rate of this reaction is R = [NO] + {O2}

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The rate-determining step of a reaction is the slowest step of a chemical reaction which determines the rate (speed) at which the overall reaction would take place.

Reaction mechanism:

The slow and fast reactions both have NO3 which is cancelled out on both sides, in order to get the overall reaction.

The rate law for this reaction would be that for the rate determining step:

R = [NO] + {O2}

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