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SOVA2 [1]
3 years ago
13

How many ATOMS are in 7.32 moles of sulfur dioxide?

Chemistry
1 answer:
givi [52]3 years ago
6 0

Answer

There are 6.022 x 1023 atoms of sulfur in one mole of sulfur dioxide.

Explanation:

Also you're cute wanna talk

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8. How do you know when kinetic energy is not changing?
Nostrana [21]
Answer:

Kinetic energy is the energy of motion so to figure out that it’s not changing is if the object is still moving. If it’s staying still or is at rest, it is presenting potential energy, which is when energy is being stored inside the object.
5 0
3 years ago
Choose one scientist who made a note-worthy contribution to our current understanding of cells and explain what the contribution
alina1380 [7]

Answer:

See the answer below

Explanation:

There are several scientists that contributed to the understanding of the cell. Some of them and their contributions are as follows:

Anton van Leeuwenhoek: He invented the first primitive microscope and was able to view some unicellular microscopic cells such as protozoans and bacteria. He disproved the theory of spontaneous generation by his discoveries.

Robert Hooke (1665): He improved further on the microscope invented by Leeuwenhoek and was able to view compartment-like rooms when tissues of cork were sectioned. He tagged the compartment as 'cell'.

Schleiden (1804–1881): Using an improved microscope, he was able to extensively study plant tissues and borrowed the word coined by Hooke (cell) to describe the component of the plant tissues.

Theodor Schwann (1810–1882): He studied animal tissues and made a similar observation as Schleiden.

Through their various studies, Schleiden, Schwann, and another scientist, Rudolf Virchow later developed what is nowadays known as the cell theory

6 0
3 years ago
When 0.0901 mol of an unknown hydrocarbon is burned in a bomb calorimeter, the calorimeter increases in temperature by 2.19°C. I
Alexus [3.1K]

Answer:

The heat of combustion for the unknown hydrocarbon is -29.87 kJ/mol

Explanation:

Heat capacity of the bomb calorimeter = C = 1.229 kJ/°C

Change in temperature of the bomb calorimeter = ΔT = 2.19°C

Heat absorbed by bomb calorimeter = Q

Q=C\times \Delta T

Q=1.229 kJ/^oC\times 2.19^oC=2,692 kJ

Moles of hydrocarbon burned in calorimeter = 0.0901 mol

Heat released on combustion = Q' = -Q = -2,692 kJ

The heat of combustion for the unknown hydrocarbon :

\frac{Q'}{0.090 mol}=\frac{-2,692 kJ}{0.0901 mol}=-29.87 kJ/mol

6 0
3 years ago
Read 2 more answers
Which of the following would not be a clear indication of a chemical change
Alekssandra [29.7K]

I believe the answer is "After adding two substances together a new order is detected" because nearly all of the other answers suggest a chemical change has taken place. The reason I say "almost" is because answer two and four results in bubbles forming so the answer cannot be both. The only one to not clearly show a chemical change has occurred is the last answer.

3 0
3 years ago
Which one of the following molecules is polar? PBr5 CCl4 BrF5 XeF2 XeF4
Natasha_Volkova [10]
Polar molecules are characterized by unequal sharing of electrons in a molecule forming a partial negative and positive charges. For this case, the correct answer is the BrF5. It is has a free pair of electrons and the forces are not balanced.
6 0
3 years ago
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