4 years ago

How electrons can be arranged in atoms orbitals

1 answer:

3 0

electrons are arranged in shells around an atom's nucleus. Electrons closest to the nucleus will have the lowest energy.

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Answer: 4.52x10²⁴ atoms Li

Explanation: For 1 mole of Li it is equal to the Avogadro's Number.

Solution:

7.5 moles Li x 6.022x10²³ atoms Li/ 1 mole Li

= 4.52x10²⁴ atoms Li

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3 years ago

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Anvisha [2.4K]

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Margaret [11]

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What is the pOH of a 1 x 10^-8 M solution of HNO3?

Sedaia [141]

Explanation:

to find POH u need PH first

so ph=-log(h3o)

$ph = - log(1 \times {10}^{ - 8} ) \\ \\ ph = 8 \\ ph + poh =14 \\ poh = 14 - 8 \\ poh = 6$

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3 years ago

What's the difference between a substance and a mixture

zhuklara [117]

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a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.

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