*WILL MARK BRAINLIEST! Why is it difficult for us to use fusion reactions to produce energy?

1 answer:

7 0

Fusion occurs constantly on our sun, which produces most of its energy via the nuclear fusion of hydrogen into helium. Neither do fusion reactions produce the large amounts of dangerous radioactive waste that fission reactions do. That's why it's such a dreamy source of energy.

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Any reaction that absorbs 150 kcal of energy can be classified as

Dennis_Churaev [7]

The answer should be (D) endothermic reaction.

Reason : - Reactions in which energy is absorbed are called endothermic reactions. In your provided question, 150 kcal energy is being absorbed, and thus, we can say that it is an endothermic reaction.

6 0

2 years ago

Who was the first U.S. secretary of state to ever visit the remote cook islands in the south pacific

pogonyaev

Answer:

I think it was Hillary Clinton.

Explanation:

6 0

2 years ago

Pls help with science

MissTica

The answer is C because it is believed that those two were once connected

6 0

2 years ago

Consider a series of molecules in which the C atom is bonded to atoms of second-period elements: C-O, C-F, C-N, C-C, and C-B. Pl

Sati [7]

Answer:

Explanation:

As we move along to the right in the same period, the electronegativity and the effective nuclear charge values are higher.

The tendency is that the higher these values are, the shorter the bonds will be.

With that information in mind, and looking at the periodic table, the order would be:

Where the C-F bond is the shortest among them.

8 0

3 years ago

Suppose that a certain atom possesses only four distinct energy levels. Assuming that all transitions between levels are possibl

olya-2409 [2.1K]

Answer:

Following are the response to the given question:

Explanation:

The number of shells

n = 4

Calculating the spectral line:

$= \frac{n(n-1)}{2}\\\\ = \frac{4(4-1)}{2} \\\\= \frac{4\times 3}{2}\\\\ = \frac{12}{2}\\\\ = 6$

4 0

2 years ago