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4 years ago

What problem does the hudson river still face

Chemistry

2 answers:

Roman55 [17]4 years ago

6 0

Answer:

See Below

Explanation:

Just think about it. The Hudson River leads directly into the Atlantic Ocean, so imagine all of the probable pollution and trash that gets into it from NYC and other cities, combined that is a lot of a probable trash, which ends up in our oceans, then leading to climate crisis.

Hope this helps!

iren [92.7K]4 years ago

3 0

A problem that the Hudson River still faces is pollution

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Why is sucrose insoluble in dichloromethane?

Vika [28.1K]

Sucrose is insoluble in dichloromethane because dichloromethane is not a polar solvent.
Sucrose is soluble in water because the molecules of sucrose has the ability to react with the molecules of water and thereby forming hydrogen bond which enhance the dispersion of sucrose in the water.
Sugar can not react in a similar way with dichloromethane because they do not possess chemical species that can react together to form bonds. Thus, sugar is a polar substance which can not dissolve in a non-polar solvent.

5 0

4 years ago

Which factors would negatively impact the bodies digestive system

swat32

Sugar – it is heating, sticky and toxic to the body in big doses

Lack of sleep – your body needs adequate rest to rejuvenate all organs so they can perform their intended roles

Over-eating – this can send your body into shutdown mode and put excess stress on your organs

Alcohol – both poisonous and toxic to the body, too much alcohol damages the body internally which is evident externally

Cold food and drinks – can create stagnation in the digestive system, slowing down the digestive process considerably

Emotions – anger/upset/frustration – all will affect one or more of your organs. Try and control what you can and let go of what you can’t

Processed foods – they contain foreign properties that are literally indigestible by the human body

Pandadol/nuerofen – contain chemicals that will alleviate pains and complaints temporarily, yet will leave a trail of destruction. Try natural remedies instead

Anti-biotics – whilst they kill bacteria and bugs – they also kill your insides! Follow up a round of anti-biotics with some gut nourishing foods

Over-exercise – will deplete your Qi and deplete your digestive strength. Exercise is fantastic in decent doses – not extremes. Are there issues in your life that you are avoiding and using exercise as a distraction from?

I only listed 10 examples for you because you didn't put any more detail on a specific number or answer.

3 0

3 years ago

A closed vessel system of volume 2.5 L contains a mixture of neon and fluorine. The total pressure is 3.32 atm at 0.0°C. When th

Oxana [17]

Answer: moles of Ne = 0.149 moles

moles of F₂ = 0.221 moles

Explanation:

The process occurs at costant volume.

Neon is a monoatomic gas, Cv =3/2R, Flourine is a diatomic gas, Cv = 5/2R

n = PV/RT ; where n is total = number of moles, P is total pressure = 3.32atm, V is volume = 2.5L, R is molar gas constant = 0.08206 L-atm/mol/K = 8.314 J/mol/K, T is temperature = 0.0°C = 273.15K

n(total) = (3.32 atm)(2.5 L)/(0.08206 L-atm/mol/K)(273.15) = 0.3703 mol

For one mole heated at constant volume,

Change in entropy, ∆S = ∫dq/T = ∫(Cv/T)dT

From T1 to T2, Cvln(T2/T2) = Cvln(288.15/273.15) = 0.05346•Cv

So, for 0.3703 moles,

∆S = (0.3703 mol)(0.05346)Cv = 0.345 J/K

⇒ Cv = 17.43 J/mol/K for the Ne/F₂ mixture.

For pure Ne, Cv = (3/2)R = 1.5 • 8.314 J/mol/K = 12.471 J/mol/K

For pure F₂, Cv = (5/2)R = 2.5 • 8.314 J/mol/K = 20.785 J/mol/K

If Y is the mole fraction of Ne, Y can be determined by setting the observed entropy change (∆S) to the weighted average of the entropy changes expected for the two different gases in the mixture:

17.43 J/mol/K = Y * 12.471 J/mol/K + (1 – Y) * 20.785 J/mol/K

⇒ 20.785 J/mol/K – 8.314 J/mol/K * Y = 17.43J/mol/K

Y = 0.403 ; 1 – Y = 0.597

moles of Ne = (0.403)(0.3703 mol) = 0.149 moles

moles of F₂ = (0.597)(0.3703 mol) = 0.221 moles

7 0

3 years ago

7. Calculate the amount of energy required heat 100.g to the following: a. H2O(s) changes to H2O(l) at 0°C b. H2O(l) changes to

Delicious77 [7]

a=b=33400 J

c=4180 J

Further explanation

Heat can be calculated using the formula:

Q = mc∆T

Q = heat, J

m = mass, g

c = specific heat, joules / g ° C

∆T = temperature difference, ° C / K

The heat to change the phase can be formulated :

Q = mLf (melting/freezing)

Q = mLv (vaporization/condensation)

Lf=latent heat of fusion

Lv=latent heat of vaporization

The heat of fusion for water at 0 °C : 334 J/g and the heat of vaporization at 100 °C : 2,230J/g

a. melting

$\tt Q=100.334=33400~J$

b. freezing

$\tt Q=100.334=33400~J$

c.raise the temperature(c water = 4.18 J/g C)

$\tt Q=100\times 4.18\times (20-10)=4180~J$

5 0

3 years ago

Which is the coefficient in this compound? 4CO2

ser-zykov [4K]

Answer:

the answer is

Explanation:

number of mollecoles

6 0

3 years ago