Moles Ag = 68.3 g / 107.868 g/mol=0.633
The big bang did not produce a significant proportion of elements heavier than helium because the temperatures and densities present in the early universe were not sufficient to support the fusion of heavier elements.
During the first few minute of the big bang, the universe was composed of mostly hydrogen and helium, with very small amounts of lithium and beryllium. As the universe expanded and cooled, the denser regions of the universe collapsed to form the first stars. Inside these stars, the intense pressure and heat generated by nuclear fusion reactions allowed for the production of heavier elements, such as carbon and oxygen. However, elements heavier than helium, such as iron and nickel, require even higher temperatures and densities to be produced, which can only be found in the cores of supernovae. Therefore, the big bang alone did not produce a significant proportion of elements heavier than helium.
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Answer:
There is <u>only one change</u> when transcribing from a DNA sequence to a RNA sequence.
Explanation:
The change when transcribing is that instead of thymine (T) in a DNA sequence, you have Uracil (U) in a RNA sequence. The rest will stay the same. So, <u>DNA has ATCG</u>, whereas <u>RNA has UACG</u>. There should be <u>NO thymine (T)</u> in your RNA sequence–– it should only include the four of the following: UACG.
[FORMAT]: DNA is to RNA
<u>A is to U</u> (IMPORTANT, NO "T") –– Think as <u>Apples Under</u> the Tree
<u>T is to A</u> –– Think as <u>Trees have Apples</u>
<u>C is to G</u> –– Think as <u>Car in the Garage </u>
<u>G is to C</u> –– Think as <u>Inside the Garage are Cars</u>
Answer:
it is because of Dark Matter
Dark Matter, component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 30.1 percent of the matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent).
Dark matter is composed of particles that do not absorb, reflect, or emit light, so they cannot be detected by observing electromagnetic radiation. Dark matter is material that cannot be seen directly.
Explanation:
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