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tester [92]
3 years ago
13

Does the amount of power Change going up a fight of steps as I Change my speed?

Chemistry
1 answer:
Leviafan [203]3 years ago
7 0
yes because your going faster
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The temperature program for a separation starts at a temperature of 50 °C and ramps the temperature up to 270 °C at a rate of 10
Troyanec [42]

Answer:

The correct answer to the question is Option E (Strongly retained analytes will give broad peaks).

Explanation:

The other options are true because:

A. Initial temp = 50 °C

   Final temp =  270 °C

Differences in temp = 270 - 50 = 220°C

Rate =  10 °C/minute.

So, at 10 °C/minute,

total of 220°C /10 °C = number of minutes required to reach the final temp.

220/10 = 22 minutes

B. A column has a minimum and maximum use temperature. Solutes that are already retained would remain stationary while temperatures are low. This would only change if there is an increase in temperature. Heat transfers more energy to the liquid which would make the solute interact with the column phase.

C. Weakly retained solutes may contain larger molecules, will separate by absorbing into the solvent early in separation making the mobile phase separates out into its components on the stationary phase.

D. Retained solute's vapor pressure is higher at higher temperatures making it possible for particle to escape more from the solute when the temperature is high than when it is low.

6 0
3 years ago
Which characteristic of life is described as the transfer of DNA from parent to offspring, and is important for keeping a specie
deff fn [24]
B is correct answer I believe
5 0
3 years ago
Read 2 more answers
How many grams of Cl are in 345 g of CaCl2
swat32
Hope this helps you.

3 0
3 years ago
Why is a very small amount of cerium oxide nanoparticles need: A) the nanoparticles are elements
irina [24]
Have a high suface area to volume ratio
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What is the role of gravity in maintaining the atmospheric layer around Earth ? Please put a simple explanation Thank you !
Delvig [45]

Answer:

Explanation:

First of all, we need to understand what gravity is. Gravity in its simplest form can be best visualized as a force of attraction, that pulls all objects that have a mass towards itself.

It is usually exerted by an object with a larger mass and felt by objects with smaller masses.

Putting this into context, the earth exerts a gravitational pull on all substances with masses, which are around it. This includes the oceans, birds, airplanes, clouds, and even gasses in the atmosphere. The atmospheric gasses may be light enough to float, but they can't go very far, since gravity is constantly tugging at them. This keeps the gasses that make up our atmosphere, within a reasonable radius, which is very close to the earth. In a nutshell, gravity prevents them from floating away into outer space.

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3 years ago
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