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kvv77 [185]
2 years ago
12

In general, the presence of atoms of what element(s) makes a molecule polar

Chemistry
1 answer:
NISA [10]2 years ago
3 0
Polarity of a molecule doesn't depend only on the presence of certain atom(s). It also depends on symmetry. For example, take the alkanes family C_{n}H_{2n+2}. These molecules are generally nonpolar, because there is no net dipole moment. Now, dipole moment arises due to <span>difference in the electronegativity of carbon and the other element. In organic chemistry, generally these atoms are Oxygen, Halogens, Nitrogen. Because of their high electronegativity, they cause a net dipole moment resulting in polarity.

</span>H_3C-CH_3 is symmetrical and hence non-polar.

H_3C-O-CH_3 is asymmetrical and polar. It's structure is bent because of oxygen lone pairs.

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In a reaction, 25 grams of reactant
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In this question, 25 grams of a reactant AB, was broken down in a reaction to produce 10 grams of products A and X grams of product B. According to the law of conservation of mass, the mass of the reactant must be equal to the total mass of the products. This means that 25 grams must also be the total mass of both products in this reaction. Hence, if product A is 10 grams, product B will be 25 grams - 10 grams = 15 grams.

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2 years ago
Which of the following solutions is a buffer?A) A solution made by mixing 100 mL of 0.100 M HClO and 50 mL of 0.100 M HCl.B) A s
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7 0
2 years ago
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The condensed structural formula for the equation is given in the image attached.

4 0
2 years ago
Read 2 more answers
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