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dalvyx [7]
3 years ago
11

In a vintage science fiction movie, space travelers find themselves on a planet orbiting a distant star in which there are curio

us forms of life based on silicon instead of carbon. Although the story clearly is a sci-fi, the choice of silicon as this alien life-form's central atom instead of carbon, seems plausible or credible, beacuse silicon has 14 protons. This means that silicon
Chemistry
1 answer:
MA_775_DIABLO [31]3 years ago
5 0

Answer:

has 4 electrons in its valence shell.

Explanation:

Silicon has 14 protons, so its neutral atom has also 14 electrons, thus, the electron distribution following the Linus Pauling's diagram is:

1s² 2s²2p⁶ 3s²3p²

Thus, it has 4 electrons in its valence shell (3), likely carbon. So, silicon would have some of the properties of carbon, such as form 4 bonds, and the structure would be similar.

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Which diagram? There isn’t any there lol
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2 years ago
2C₂H6 + 702 —>4C02 + 6H₂O
navik [9.2K]

Answer:

975.56×10²³ molecules

Explanation:

Given data:

Number of molecules of C₂H₆ = 4.88×10²⁵

Number of molecules of CO₂ produced  =  ?

Solution:

Chemical equation:

2C₂H₆  + 7O₂     →      4CO₂ + 6H₂O

Number of moles of C₂H₆:

1 mole = 6.022×10²³ molecules

4.88×10²⁵  molecules×1mol/6.022×10²³ molecules

0.81×10² mol

81 mol

Now we will compare the moles of C₂H₆ with CO₂.

                     C₂H₆          :             CO₂

                          2           :               4

                           81         :           4/2×81 = 162 mol

Number of molecules of CO₂:

1 mole = 6.022×10²³ molecules

162 mol ×6.022×10²³ molecules / 1 mol

975.56×10²³ molecules

8 0
2 years ago
If a cell has a nucleus, then it is a
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Answer:

It is a eukaryotic cell because prokaryotes don't have a nucleus, rather, they have a nucleoid.

5 0
2 years ago
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How are the shape of sand dunes determined?using one word
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Two atoms with the same number of protons but a different number of neutrons are
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They are called isotopes.

Example of isotopes are Hydrogen and deuterium.
Hydrogen is 1 proton and 0 neutrons.
Deuterium is 1 proton and 1 neutron
6 0
3 years ago
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