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Mashutka [201]
3 years ago
15

Why does nuclear fusion occur in stars but not on Earth?

Chemistry
2 answers:
Anna11 [10]3 years ago
6 0

Answer:

C

Explanation:

disa [49]3 years ago
4 0

Answer:

C.

Fusion reactions require a lot of heat and pressure

Explanation:

nuclear fusion takes place only at extremely high temperatures. That's because a great deal of energy is needed to overcome the force of repulsion between the positively charged nuclei. ... A: Nuclear fusion doesn't occur naturally on Earth because it requires temperatures far higher than Earth temperatures.

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Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride:
mixer [17]

In a particular experiment, the per cent yield is 79.0%. This means that in this experiment, a 7.90-g sample of fluorine yields is 7g of SF6.

<h3>How is Sulphur hexafluoride formed?</h3>

Sulfur Hexafluoride is a disparity agent formed of an inorganic fluorinated inert gas comprised of six fluoride atoms bound to one sulfur atom, with possible diagnostic activity upon imaging.

Thus, a sample of fluorine yields 7g of SF6.

To learn more about Sulfur Hexafluoride click here;

brainly.com/question/15024952

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3 0
2 years ago
Based on the solubility chart, which of the listed salts is the most soluble at 25 degrees Celsius?
VashaNatasha [74]
I think it's Potassium iodide because it has the highest solubility at 25°C.
4 0
3 years ago
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Which of the following is an example of observational scientific investigation?
Softa [21]
B: nothing the color of the solution when heated
8 0
3 years ago
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Solve the science problem
erastovalidia [21]

Answer:

It's C

Explanation:

3 0
2 years ago
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Why is it difficult to accurately represent ammonia and methane on paper?
andrew-mc [135]

Answer:

The correct answer is because the molecular structure.

Explanation:

The difficulty of ammonia and methane to be represented on paper is due to the molecular structure. These compounds have a three-dimensional projection with defined angles. Ammonia presents angles of 109.5º between the atom of Nitrogen and those of Oxygen. The ammonia presents 107.8º between the oxygen atoms.

In the methane molecule, there is 109.5º between the hydrogen molecules and the carbon atom. This results in the need for a 3D representation of the molecule.

Have a nice day!

6 0
3 years ago
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