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Karo-lina-s [1.5K]
3 years ago
5

In Chapter 1 of Astrobiology, A Very Short Introduction, the author talks about some properties of one element in particular tha

t is vital to life on Earth. In particular, he mentions this element's ability to form long chains, single, double, and triple bonds, as well as rings. Which elements has these properties?
Chemistry
1 answer:
Fofino [41]3 years ago
7 0

Answer:

Carbon

Explanation:

Carbon has four electrons in its valence shell, so it generally shares it in a covalent bond. This element needs four electrons to be stable, so it can form single (such as the bond with hydrogen), double (such as the bond with oxygen) or triple bonds (such as the bond with nitrogen).

It can also form bonds with other carbon, and they can form longs chains, that's why there are a lot of organic compounds (the compounds with carbon). Carbon can form rings too, such as in benzene.

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mars1129 [50]

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6 0
3 years ago
If 1.80 moles of NaCl was dissolved in enough water to make 3.60 L of solution, what is the Molarity?
sweet-ann [11.9K]

Answer:

0.5M

Explanation:

The equation for molarity is:

  • M = \frac{mol}{liters} ; where the "M" stands for molarity, the "mol" stands for moles of solute and the "liters" means the volume in liters of solution.

We are given that there are:

  • 1.80 moles of NaCl (the moles of solute)
  • 3.60 Liters of solution (the volume in liters of solution)

Now we just plug those numbers into the formula and get our answer:

  • M= \frac{1.80mol}{3.60L}= 0.5M

After doing the math and dividing the moles of solute by the liters of solution, we get that the molarity of the solution is 0.5M.

8 0
3 years ago
Sort the phrases pertaining to pure substances and mixtures as either true or false.
Lynna [10]
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5 0
3 years ago
Why must sample spots be above the solvent in paper chromatography
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olya-2409 [2.1K]

Answer:

Difference between Vapor and Gas

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Explanation:

4 0
2 years ago
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