Why is hydrogen the most common element in the universe?

2 answers:

8 0

The universe today is observed to contain one helium atom for every ten or eleven atoms of hydrogen

nevsk [136]3 years ago

3 0

Because it is the simplest form. When the universe originally formed, it was too hot for matter as we know it to exist - there was only energy, quarks, and possibly other particles we have never encountered. As the universe cooled, the quarks began to stick together. And when they did, they formed protons, the simplest form of matter. Which, when combined with an electron, makes hydrogen. While it was still hot, some of that hydrogen fused to helium, but most of it remained as hydrogen.

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Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients.

pogonyaev

I think it's balanced ?
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Sophie [7]

We can calculate the final temperature from this formula :

when Tf = (V1* T1) +(V2* T2) / (V1+ V2)

when V1 is the first volume of water = 5 L

and V2 is the second volume of water = 60 L

and T1 is the first temperature of water in Kelvin = 80 °C +273 = 353 K

and T2 is the second temperature of water in Kelvin = 30°C + 273= 303 K

and Tf is the final temperature of water in Kelvin

so, by substitution:

Tf = (5 L * 353 K ) + ( 60 L * 303 K) / ( 5 L + 60 L)

= 1765 + 18180 / 65 L

= 306 K
= 306 -273 = 33° C

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shtirl [24]

science of love

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In-s [12.5K]

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jgutxutututrxxtdr

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