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larisa86 [58]
3 years ago
13

1.2.6 1-118 Find each sum. A. 3/5 + 1/3 B. 5/7 + 1/2 C. 1/6 + 2/8

Chemistry
1 answer:
bagirrra123 [75]3 years ago
8 0

Answer:

A. 14/15

B. 17/14

C. 5/12

Explanation:

Convert all so that the denominators are the same.

A.  3/5 + 1/3  = 9/15 + 5/15 = 14/15

B.  5/7 + 1/2 = 10/14 + 7/14 = 17/14

C.  1/6 + 2/8 = 4/24 + 6/24 = 10/24 = 5/12

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3. While the alkali and alkaline earth metals would lose electrons to attain a noble gas configuration, the group VIIA halogens, as we have here, would need to gain a valence electron for an full octet. The trends in the group I and II elements are turned on their head for the halogens: The smaller the atomic number, the less shielding, and so the greater the pull by the nucleus to gain a valence electron. And as the atomic number increases (such as when you go down the group), the more shielding there is, the weaker the effective nuclear charge, and the lesser the tendency to gain a valence electron. Bromine (Br) has the largest atomic number among the halogens in this set, so an electron would feel the smallest pull from a bromine atom; bromine would thus be the least likely here to gain a valence electron.

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They were created with stone and wood and sometimes even bones, I hope this helped!
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Answer:

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Explanation:

Hey there!

In this case, since the Henry's law is defined in terms of pressure, henry's constant and pressure, as shown below:

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Best regards!

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