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KatRina [158]
3 years ago
12

Which of the following best describes the electron cloud model? A. It shows that electrons usually carry a negative charge. B. I

t shows that electrons remain in high-energy subshells. C. It shows that electrons move quickly in circular orbits. D. It shows that the electrons within an atom do not have sharp boundaries.
Chemistry
1 answer:
irakobra [83]3 years ago
8 0
<span>D. It shows that the electrons within an atom do not have sharp boundaries.</span>
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1. How many molecules are in 240g of sulfuric acid?
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Answer:

14.8 × 10²³ molecules

Explanation:

Given data:

Mass of sulfuric acid = 240 g

Number of molecules = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

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2.45 × 6.022 × 10²³ molecules

14.8 × 10²³ molecules

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