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creativ13 [48]
3 years ago
8

If one benzene molecule is placed in water, the total entropy of the water + benzene system:___________

Chemistry
1 answer:
valkas [14]3 years ago
3 0

Answer:

d) increases

Explanation:

Benzene is an aromatic hydrocarbon which is obtained from the destructive distillation of coal. It is a colourless volatile liquid with a sweet smell. It boils ar 80° C (353 K) and freezes at 5°C (2278 K). It is insoluble in water but mixes in all proportions with ethanol, ethoxyethane and methylbenzene. The reason which benzene is insoluble in water is that benzene is a non-polar compound and water is polar, meanwhile only "like dissolves like". So, when the benzene molecule is placed in water. There will be distortion and disturbance between the benzene molecule and the water. Thus, the particle of each molecule will be distant from each other. This state results to change in the entropy of the system as the entropy of the system increases.

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6 MARKER FOR CHEMISTRY I NEED THIS!!!​
natita [175]

Answer:

when you put the marker in the water the water gets into the marker and it will change the solid color to a plain color witch means that the marker will make the water in the cup the color from the marker.

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4 0
2 years ago
A chemist makes up a solution by dissolving 42.0 g of Mg(NO3)2 in enough water to produce a final solution volume of 259 mL. To
Igoryamba

Answer:

The molar mass of Mg(NO₃)₂, 148.3 g/mol.

Explanation:

Step 1: Given data

  • Mass of Mg(NO₃)₂ (solute): 42.0 g
  • Volume of solution: 259 mL = 0.259 L

Step 2: Calculate the moles of solute

To calculate the moles of solute, we need to know the molar mass of Mg(NO₃)₂, 148.3 g/mol.

42.0 g × 1 mol/148.3 g = 0.283 mol

Step 3: Calculate the molarity of the solution

M = moles of solute / liters of solution

M = 0.283 mol / 0.259 L

M = 1.09 M

7 0
2 years ago
After two half-lives, a sample contains 10 grams of parent isotopes. How many grams of the parent isotope were present to start?
Lunna [17]
T=2T
m=10 g

m=m₀2^(-t/T)

m₀=m/{2^(-2T/T)=m/2⁻²

m₀=10/2⁻²=40 g

40 grams
8 0
3 years ago
Read 2 more answers
What term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of ni
julia-pushkina [17]

The term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of nicotinic acid will be<u> naicin flush.</u>

<u />

It could also treat niacin deficiency along with high triglyceride and cholesterol levels. Additionally, it can lessen the chance of a heart attack but also slow artery narrowing.

Niacin, sometimes referred to as nicotinic acid, would be a naturally occurring vitamin B_{3} found in the diet. It can raise blood lipid (fat) levels, including triglycerides and cholesterol, when used as medicine. In order to exert its effects, nicotinic acid causes the liver to produce less "bad" cholesterol and triglycerides.

Therefore, The term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of nicotinic acid will be<u> naicin flush.</u>

<u></u>

To know more about nicotinic acid

brainly.com/question/13255467

#SPJ4

8 0
2 years ago
I need help on these questions?
Assoli18 [71]

Answer: how about you study??????????????????????????????????????????????????????????????????????????????????????????????

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3 years ago
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