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lions [1.4K]
3 years ago
6

Which of the following procedures is used when refining petroleum? Increase the temperature of the oil. Decrease the temperature

of the oil. Increase the pressure of the oil. Decrease the pressure of the oil.
Chemistry
2 answers:
Novosadov [1.4K]3 years ago
6 0
Increase the tempature
arsen [322]3 years ago
4 0
The temperature increases 
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laila [671]
1. A thermodynamic quantity that is the difference between the internal energy of a system and the product of itsabsolute temperature and entropy; the capacity of a system to do work, as in an exothermic chemical reaction.<span>2. </span>A thermodynamic quantity that is the difference between the enthalpy and the product of the absolute temperatureand entropy of a system. Also called <span>Gibbs free energy</span>. 
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3 years ago
Are my answers correct?
olga_2 [115]

Answer: yes

Explanation: its common sense

6 0
2 years ago
What are valence electrons? how many of a magnesium atom’s 12 electrons are valence electrons?
wlad13 [49]

It has 2 valence electrons.

6 0
3 years ago
The four rows of data below show the boiling points for a solution with no solute, sucrose (C12H22O11), sodium chloride (NaCl),
skad [1K]
The following are the answers to the different questions: 
<span>The four rows of data below show the boiling points for a solution with no solute, sucrose (C12H22O11), sodium chloride (NaCl), and calcium chloride (CaCl2) (not in that order). Which boiling point corresponds to calcium chloride?

A. 101.53° C

Which of the following solutions will have the lowest freezing point?

D. 1.0 mol/kg magnesium fluoride (MgF2)


Which of the following compounds will be most effective in melting the ice on the roads when the air temperature is below zero?

A. sodium iodide (NaI)


Four different solutions have the following vapor pressures at 100°C. Which solution will have the greatest boiling point?

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Four different solutions have the following boiling points. Which boiling point corresponds to a solution with the lowest freezing point?

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4 0
3 years ago
Read 2 more answers
What is the boiling point of 0.464 m lactose in water? (Kb of water = 0.512 oC/m). Enter your answer to 3 decimal places.
kirill [66]

Answer:

Boiling point for the solution is 100.237°C

Explanation:

We must apply colligative property of boiling point elevation

T° boiling solution - T° boiling pure solvent = Kb . m

m = molalilty (a given data)

Kb = Ebulloscopic constant (a given data)

We know that water boils at 100°C so let's replace the information in the formula.

T° boiling solution - 100°C = 0.512 °C/m . 0.464 m

T° boiliing solution = 0.512 °C/m . 0.464 m + 100°C → 100.237 °C

3 0
3 years ago
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