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Assoli18 [71]
3 years ago
9

Which of the following elements has six valence electrons? Be B C N O

Chemistry
1 answer:
Yakvenalex [24]3 years ago
7 0
Oxygen (O) ,Neon (Ne),Argon (Ar)
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The high polarity of the oxygen-carbon bond in alcohols is what allows them to be soluble in water.
Anna11 [10]

This is false. An alcohol does indeed have a polar C-O single bond, but what we should really be focusing on is the extraordinarily polar O-H single bond. When oxygen, fluorine, or nitrogen is bound to a hydrogen atom, there is a small (but not negligible) charge separation, where the eletronegative N, O, or F has a partial negative charge, and the H has a partial positive charge. Water has two O-H single bonds in it (structure is H-O-H). The partially negative charge on the O of the water molecule (specifically around the lone pair) can become attracted either a neighboring water molecule's partially positive H atom, or an alcohol's partially positive H atom. This is weak (and partially covalent) attraction is called a hydrogen bond. This is stronger than a typical dipole-dipole attraction (as would be seen between neighboring C-O single bonds), and much stronger than dispersion forces (between any two atoms). When the solvent (water) and the solute (the alcohol) both exhibit similar intermolecular forces (hydrogen bonding being the most important in this case), they can mix completely in all proportions (i.e. they are miscible) in water.

8 0
3 years ago
What mass of NaCl would you have dilute to 1L to make up a 0.25M solution?<br> Asap please
gavmur [86]

Answer: 0.25m

Im not sure but i think

Explanation:0.25/0.25

3 0
3 years ago
Bears and salmon have a predator - prey relationship . What would most likely happen to the bear population if the salmon popula
AlexFokin [52]
The population would grow and live easier.
7 0
3 years ago
Read 2 more answers
What type of bond joins glycerol to fatty acids?
Elina [12.6K]

Answer:

Ester Linkages

Explanation:

In a fat molecule, the fatty acids are attached to each of the three carbons of the glycerol molecule with an ester bond through the oxygen atom.

You're welcome

3 0
3 years ago
Which sentence describes two atoms that form an ionic bond?
xz_007 [3.2K]

Answer:

The correct answer is "D. The difference in their electronegativities is greater than 1.7"

Explanation:

An ionic bond is produced between metallic and non-metallic atoms, where electrons are completely transferred from one atom to another. During this process, one atom loses electrons and another one gains them, forming ions. Usually, the metal gives up its electrons forming a cation to the nonmetal element, which forms an anion.

So, this type of bond consists of the attraction of atoms with electric charges of different signs, that is, the bond is established when atoms of low electronegative elements (metals) are bonded with atoms of highly electronegative elements (nonmetals).

So you can say that atoms of electronegativity difference equal to or greater than 1.7 participate in this type of bond (with its exceptions).

<u><em>The correct answer is "D. The difference in their electronegativities is greater than 1.7"</em></u>

8 0
3 years ago
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