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tensa zangetsu [6.8K]
3 years ago
13

Who was in control of Afghanistan when the U.S. and Allied forces invaded it in 2001?

Chemistry
2 answers:
IrinaVladis [17]3 years ago
7 0
<span>B. the Taliban. is the answer</span>
Aleksandr-060686 [28]3 years ago
3 0
The correct answer is B. the Taliban.
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Find the average atomic mass for Cl if 75.78% of Cl atoms are Cl-35 with a mass of 34.96885271 u and 24.22% are Cl-37 with a mas
N76 [4]

Answer:

35.45253819

Explanation:

(0.7578*34.96....)+(0.2422*36.96...)

8 0
3 years ago
In the reaction between bromine and sodium, a bromine atom gains an electron. What ion is formed? Is the bromine oxidized, or is
SVETLANKA909090 [29]

Answer: The ion formed after the reduction of bromine is Br^-

Explanation:

The electronic configuration of Sodium (Na) = [Ne]3s^1

The electronic configuration of Bromine (Br) = [Ar]3d^{10}4s^24p^5

From the above configurations, Sodium ion will loose 1 electron in order to gain stable electronic configuration and that electron is accepted by the Bromine atom because it is 1 electron short of the stable electronic configuration.

Na\rightarrow Na^++e^-   (oxidation reaction)

Br+e^-\rightarrow Br^-   (Reduction reaction)

Bromine atom is reduced to form Br^-

Reduction reactions are the reactions in which the element gain electrons.

Oxidation reactions are the reactions in which the element looses its electrons.

3 0
4 years ago
Read 2 more answers
Can you guys help me I really need help ! Just started this 6th grade I really need help I’m use to this
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Answer:

Mechanical - Freezing & Thawing, Acid Rain, Flowing Water, oxidation

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3 years ago
Compared to an atom of phosphorus-31, an atom of sulfur-32 contains
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 <span>Phosphorus has 1 less proton and electron than sulfur in this case because remember the amount of protons are equal to the amount of electrons in the element. </span>
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One way to get more energy out of fuels is to increase _____, the percentage of energy used for work.
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