Chemistry : asked on 6n4qc96cfw
 01.10.2020

If I had a quantity of this substance at a pressure o

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09.12.2022, solved by verified expert
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Answer:

Liquid to gas 
liquid to gas

Step-by-step explanation:

Actually m.pt / b.pt of substance not provided, it will depend upon these ie m.pt and b.pt . Though as pressure is reduced so it's pressure will easily become equal to atmospheric pressure so boiling point is achieved so liquid will boil. Hopefully liquid to vapour will form . 

If temperature become equal to boiling poin, liquid will boil

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StudenGPT
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P Answered by Studen AI
The correct answer is A. by explaining pesticides' effects on living creatures.

In the passage, the author describes how Rachel Carson was alarmed by the effects of pesticides on living creatures. Carson witnessed the immediate dangers of acute pesticide poisoning, such as the incident with her friend Olga Owens Huckins finding dead birds after the spraying of DDT. However, Carson was even more concerned about the long-term effects of pesticides on plants, animals, and people. She believed that pesticides, or "biocides" as she called them, not only killed harmful species but also harmed beneficial ones.

Carson used scientific facts to highlight the damaging effects of pesticides on the environment and the delicate balance of ecosystems. She presented the information in understandable language to educate regular people about these dangers. By doing so, she aimed to create awareness and change people's perspective on the use of pesticides. Therefore, the connection between Carson's warnings about pesticides and her goal to educate people is drawn through the explanation of the effects of pesticides on living creatures.
English
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P Answered by PhD
B) to demonstrate a lesson about the importance of scientific research
The article focuses on the research done to conclude that the crater formed was due to a meteorite, not a volcano and further goes to mention the other hypotheses drawn from it, such as the craters on the moon. The final few sentences indicate that scientific research is also being done on other events.
Chemistry
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P Answered by PhD

1)D) Fission is the process when the nucleus of an atom splits after being bombarded by neutrinos.

2)A) Storage and disposal of radioactive waste is a problem all nuclear power plants face. Most of them dipose the waste underneath the ground. There have even been proposals to send the nuclear waste to the moon.

3)C) Nuclear Power because it does not produce greenhouse gas emissions.

4)A) Oil is more difficult to remove from the Earth than coal This is why, to extract oil, you need an extraction pump and other equipment, while coal can be removed from the earth after digging.

5)A) biofuel - because it comes from agriculture, and agriculture is the biggest contributor to worldwide greenhouse emissions.

6)B) Geothermal power - geothermal power uses the heat from the earth to produce energy.

7)D) - Humans have seemingly unlimited needs and these needs have to be met without destroying the enviroment.

8)C) Xenon - The other three substances listed are classified as Ozone depleting susbstances according to the Ministry of the Enviroment in New Zealand.

9)B) Synthetic materials often do not decay naturally - The best example is plastic, which is a synthetic material that takes hundreds or even thousands of years to decay.

10)C) An environmentally safe base to neutralize the lake - This can be done by oxygenizing the lake.

11)D) Oil spills - Unfortunely, these events have taken place many times. The oil spill in the Gulf of Mexico caused by British Petroleum greatly affected the coasts and waters of Louisiana.

12)D) The whole ecosystem is negatively affected, and long-term damage may occur - An oil spills afects aquatic plants, animals, birds, and the water itself.

13)B) Natural resources will be depleted - Oil might even run out completely. Besides, climate change would raise the sea levels and flood thousands of cities.

14)D) factories and power plants - especially thermal power plants that burn coal to produce energies.

English
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P Answered by PhD
B) to demonstrate a lesson about the importance of scientific research
The article focuses on the research done to conclude that the crater formed was due to a meteorite, not a volcano and further goes to mention the other hypotheses drawn from it, such as the craters on the moon. The final few sentences indicate that scientific research is also being done on other events.
Chemistry
Step-by-step answer
P Answered by PhD

1)D) Fission is the process when the nucleus of an atom splits after being bombarded by neutrinos.

2)A) Storage and disposal of radioactive waste is a problem all nuclear power plants face. Most of them dipose the waste underneath the ground. There have even been proposals to send the nuclear waste to the moon.

3)C) Nuclear Power because it does not produce greenhouse gas emissions.

4)A) Oil is more difficult to remove from the Earth than coal This is why, to extract oil, you need an extraction pump and other equipment, while coal can be removed from the earth after digging.

5)A) biofuel - because it comes from agriculture, and agriculture is the biggest contributor to worldwide greenhouse emissions.

6)B) Geothermal power - geothermal power uses the heat from the earth to produce energy.

7)D) - Humans have seemingly unlimited needs and these needs have to be met without destroying the enviroment.

8)C) Xenon - The other three substances listed are classified as Ozone depleting susbstances according to the Ministry of the Enviroment in New Zealand.

9)B) Synthetic materials often do not decay naturally - The best example is plastic, which is a synthetic material that takes hundreds or even thousands of years to decay.

10)C) An environmentally safe base to neutralize the lake - This can be done by oxygenizing the lake.

11)D) Oil spills - Unfortunely, these events have taken place many times. The oil spill in the Gulf of Mexico caused by British Petroleum greatly affected the coasts and waters of Louisiana.

12)D) The whole ecosystem is negatively affected, and long-term damage may occur - An oil spills afects aquatic plants, animals, birds, and the water itself.

13)B) Natural resources will be depleted - Oil might even run out completely. Besides, climate change would raise the sea levels and flood thousands of cities.

14)D) factories and power plants - especially thermal power plants that burn coal to produce energies.

Chemistry
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P Answered by Specialist
Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation:
A mechanical device using which we can change the direction or magnitude of force applied is known as simple machine.
For example, in the given diagram there are two individual simple machines.
The machine helps in changing the direction or magnitude of force applied by the man. As a result, it becomes easy for him to carry different things easily from one place to another.
Thus, we can conclude that the statement Fiona is correct because the diagram shows two individual simple machines, is correct.
Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation
Chemistry
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P Answered by PhD

Answer:

52.6 gram

Step-by-step explanation:

It is clear by the equation 2(27+3×35.5)= 267 gm of AlCl3 reacts with 6× 80 = 480 gm of Br2 . So 29.2 gm reacts = 480× 29.2/267= 52.6 gm

Chemistry
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P Answered by Master

Calcium (Ca)(On the periodic table, ionization energy increases as you go up and to the right of the periodic table)

Calcium (Ca)(On the periodic table, ionization energy increases as you go up and to the right of the
Chemistry
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P Answered by PhD

glycoproteins

Explanation:

A positive reaction for Molisch's test is given by almost all carbohydrates (exceptions include tetroses & trioses). It can be noted that even some glycoproteins and nucleic acids give positive results for this test (since they tend to undergo hydrolysis when exposed to strong mineral acids and form monosaccharides).

Chemistry
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P Answered by PhD

Answer:

Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:  

P×V = n×R×T

where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.

Explanation:

In this case, you know:

P= 0.884 atm

V= ?

n= Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N 0.857 moles (where 28 g/mole is the molar mass of N₂, that is, the amount of mass that the substance contains in one mole.)

R=0.082Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

T= 328 K

Replacing in the ideal gas law:

0.884 atm×V= 0.857 moles× 0.082Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N ×328 K

Solving:

Answer:Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N

V= 26.07 L

The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.

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