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Naily [24]
3 years ago
9

A student collected the data shown in the table below during an experiment.

Chemistry
1 answer:
pentagon [3]3 years ago
3 0

Answer: The answer is C.  A mercury thermometer is better to measure very small changes in temperature.

Explanation:

i took this quiz and this is the answer .

A) A mercury thermometer can measure the freezing point of a liquid that freezes at −80 °C.

B) An alcohol thermometer can measure the boiling point of a liquid that boils at 80 °C.

C) A mercury thermometer is better to measure very small changes in temperature.

D) An alcohol thermometer is better to measure the boiling points of colorless liquids.

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makkiz [27]
A forest would have have the most fertile soil
8 0
2 years ago
fills a 500.mL flask with 3.6atm of carbon monoxide gas and 1.2atm of water vapor. When the mixture has come to equilibrium she
enot [183]

Answer:

The answer to the question is

The pressure of carbon dioxide after equilibrium is reached the second time is 0.27 atm rounded to 2 significant digits

Explanation:

To solve the question, we note that the mole ratio of the constituent is proportional to their partial pressure

At the first trial the mixture contains

3.6 atm CO

1.2 atm H₂O (g)

Total pressure = 3.6+1.2= 4.8 atm

which gives

3.36 atm CO

0.96 atm H₂O (g)

0.24 atm H₂ (g)

That is

CO+H₂O→CO(g)+H₂ (g)

therefore the mixture contained

0.24 atm CO₂ and the total pressure =

3.36+0.96+0.24+0.24 = 4.8 atm

when an extra 1.8 atm of CO is added we get Increase in the mole fraction of CO we have one mole of CO produces one mole of H₂

At equilibrium we have 0.24*0.24/(3.36*0.96) = 0.017857

adding 1.8 atm CO gives 4.46 atm hence we have

 (0.24+x)(0.24+x)/(4.46-x)(0.96-x) = 0.017857

which gives x = 0.031 atm or x = -0.6183 atm

Dealing with only the positive values we have the pressure of carbon dioxide = 0.24+0.03 = 0.27 atm

7 0
3 years ago
What is a polar functional group?​
earnstyle [38]

I think this is the answer

7 0
3 years ago
How could an alpha particle pass straight through the metal foil and strike the center of the phosphor screen on the other side
EleoNora [17]
It was due to the metal foil in which the alpha particles can't even pass through. This experiment conducted by Rutherford led to the discovery of protons.
4 0
3 years ago
Which of the following correctly orders the types of radiation from the LONGEST wavelength to the SHORTEST wavelength?
gulaghasi [49]

Answer:

For the wavelenth of light spectrum, I believe the order would be red visible light, infrared, microwaves and radio waves.

5 0
3 years ago
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