“Gasoline boils at a relatively low temperature (about 150°C). The kerosene is removed at around 200°C, followed by diesel oil at 300°C and fuel oil at around 370°C.”
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What topic is the teacher most likely talking about?
a. distillation of a mixture
b. filtration of a pure substance
c.evaporation of a mixture
d. sorting of a pure substance
Answer: distillation
Explanation:
Related Questions
What happens to the blood which reaches the cells from the capillaries?food and CO2 pass to cells, O2 pass to blood wastes and CO2 pass to cells, O2 pass to blood CO2 and O2 pass to cells, wastes pass to blood food and O2 pass to cells, CO2 and wastes pass to blood
What has the strongest intermolecular forces of attraction?
What is a substance which allows the red blood cells to carry oxygen and iron.
How many atoms are in 1.75 mole CHCL3?
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Final answer:
An appropriate hypothesis explaining the observation of distant galaxies moving away from each other, and that they do so more rapidly the further they are can be found in the Big Bang Theory. This theory suggests our universe began with a 'big bang' causing galaxies to move away from each other, a process which continues today.
Explanation:
Based on the observations mentioned, an appropriate hypothesis might involve the Big Bang Theory. This theory in physics and astronomy assumes that our universe started from a singularity - a very high-density and high-temperature state. The Big Bang Theory suggests that after the initial explosion, the galaxies began moving away from each other, a process which continues till today.
The farther a galaxy is from us, the faster it's receding, which is known as Hubble's Law. This observed phenomenon matches with the theory's premise, providing validating evidence for the Big Bang.
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silver?
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Final answer:
To find the mole fraction of silver in the mixture, divide the moles of silver by the total moles of both elements.
Explanation:
To find the mole fraction of silver in the mixture, we need to calculate the moles of silver and iron. First, calculate the moles of silver by dividing the mass of silver by its molar mass. Then, calculate the moles of iron in the same way. Finally, find the mole fraction of silver by dividing the moles of silver by the total moles of both elements in the mixture.
Moles of silver = mass of silver / molar mass of silver
Moles of iron = mass of iron / molar mass of iron
Mole fraction of silver = moles of silver / (moles of silver + moles of iron)
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b. the substances that make up a solution
c. the pH of a solution
d. the boiling point of a compound
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a. the elements that make up the compound
d. the boiling point of a compound
Answer: a. the elements that make up the compound
Explanation:
Chemical formulas are the symbolic representation of the elements contained in a compound along with their relative proportions.
For example: The chemical formula for water is which shows that it is formed by combination of hydrogen and oxygen in the ratio of 2: 1 respectively.
pH of the solution is determined by litmus paper, pH paper or pH meter.
Boiling point is the temperature at which atmospheric pressure becomes equal to the atmospheric pressure.
b. The sheets of metal are all perpendicular to the top line of the roof by the Transitive Property of Parallel Lines.
c. The sheets of metal are all perpendicular to the top line of the roof by the Converse of the Same-Side Interior Angles Theorem.
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Because all of the lines are parallel, and the top line is perpendicular to them, all of the lines are perpendicular to the top line due to the transitive property of parallel lines.
Answer:
b. The sheets of metal are all perpendicular to the top line of the roof by the Transitive Property of Parallel Lines.
oil.
iron.
coal.
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United States History A Unit 2: Industrialization of the United States.
1.A Steel
2.A Laissez-faire
3.B Asia
4.C Dramatically Expanded
5.D Were a variety of musical drama, songs, and comedy.
6.B Farmed in many different ways.
7.B Was the last conflict between Native Americans and the government.
8.B African Americans who fled the South after Reconstruction.
9.B The invention of barbed wire.
10.A Jim Crow Laws.
11.D The National Grange.
12.C The Style of Politics in the United States.
13.C Populist Leader.
14.D All of the above.
15.B Was arrested for voting in an election in New York.
16.D filling important Government positions with party supporters.
17.C Be Trained In Specific Trade.
All of the answers are correct guaranteed.
Good Luck! Hope I helped:)