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Neporo4naja [7]
3 years ago
13

The universe cooled after the Big Bang. At some point, hydrogen atoms combined to form helium. What is this process called?

Chemistry
2 answers:
Vladimir [108]3 years ago
8 0
In the basic Hydrogen fusion cycle, four Hydrogen nuclei (protons) come together to make a Helium nucleus. This is the simple version of the story. There are actually electrons, neutrinos and photons involved that make the fusion of Hydrogen into Helium possible.
LiRa [457]3 years ago
4 0
This process is called as Nuclear Fusion
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vova2212 [387]

Answer:

they are molecules with normal bonds rather than partial bonds and can occasionally be isolated.

Explanation:

In chemistry, reaction intermediates are species that are formed from reactants and are subsequently being transformed into products as the reaction progresses. In other words,  reaction intermediates are species that do not appear in a balanced reaction equation but occur somewhere along the reaction mechanism of a non-elementary reaction. They are usually short lived species that possess a high amount of energy. They may or may not be isolated.

They are often molecular species with normal bonds unlike activated complexes that are sometimes hypervalent species.

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Answer:

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Explanation:

As we know, molecular mass can be calculated as

Molar mass =  C6H5NH2

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In mordern periodic table there are all element given in modern periodic table
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Explanation:

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