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Law Incorporation [45]
2 years ago
6

How many atoms are in 6.7 moles of iron?

Chemistry
2 answers:
sineoko [7]2 years ago
6 0

Answer:

4.034x10^24 atoms

Explanation:

6.7 x 6.023x10^23 = 4.034x10^24 atoms

ladessa [460]2 years ago
3 0

4.0348348050000003e+24

:|

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The number of electrons in the outermost principal energy level of a chlorine atom is
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Answer:

seven electrons

Explanation:

Chlorine is present in group seventeen of periodic table. It is halogen element. All halogens have seven electrons in outer most valance shell.

The require only one electron to gain the stable electronic configuration or to complete the octet.

Electronic configuration of chlorine:

Cl₁₇ = 1s² 2s² 2p⁶ 3s² 3p⁵

Abbreviated electronic configuration:

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3 years ago
A scientist prepared an aqueous solution of a 0.45 M weak acid. The pH of the solution was 2.72. What is the percentage ionizati
aleksandr82 [10.1K]

Answer:

0.42%

Explanation:

<em>∵ pH = - log[H⁺].</em>

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Protons are the subatomic particle that determines the identity of an element.

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