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Aloiza [94]
2 years ago
10

Can someone please check my answer?

Chemistry
1 answer:
Luden [163]2 years ago
4 0

Yes the ANSWER is Correct-

On first half life the mass will be 10 gram

On second half life the mass will be 5 gram

On third half life the mass will be 2.5 gram

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Where are the answer choices

8 0
3 years ago
Is this molecule polar or nonpolar?
lutik1710 [3]
The answer is nonpolar  

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Which of the following choices has the compounds correctly arranged in order of increasing solubility in water? (least soluble t
larisa86 [58]

Answer: Option (d) is the correct answer.

Explanation:

As it is known that like dissolves like. So, water being a polar compound is able to dissolve only polar compounds.

Hence, a compound that is ionic or polar in nature will readily dissolve in water. Whereas non-polar compounds will be insoluble in water.

As CCl_{4} is a non-polar compound. Hence, it is insoluble in water.

On the other hand, CHCl_{3} is a polar compound due to difference in electronegativity of chlorine and carbon atom there will be development of partial charges. Hence, there will be dipole-dipole forces existing between them.

Whereas NaNO_{3} is an ionic compound and it will readily dissociate into ions when dissolved in water. Also, there will be ion-dipole interactions between sodium and nitrate ions.

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6 0
3 years ago
What is the mass of 8.90 moles of magnesium chloride, MgCl2?
Korolek [52]
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6 0
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How many particles are in chemicals
stepan [7]

Answer:

6.022 x 10^23 particles

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Chemists have chosen to count atoms and molecules using a unit called the mole (mol), from the Latin moles, meaning “pile” or “heap.”

One mole is 6.022 x 10^23 of the microscopic particles which make up the substance in question.

Hope this helped! :^)

4 0
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