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2 years ago

Is anyone good at chemistry if so can someone help me please ? (NO LINKS)

Chemistry

1 answer:

steposvetlana [31]2 years ago

4 0

In general, salts (formed during a neutralization reaction) are ionic compounds that are soluble in water and dissociate in solution into ions that conduct electricity. Out of the six statements given, there are three related statements that rehash the foregoing, and there are three related statements that are collectively incorrect.

Statements A, B, and D are (generally) true regarding salts formed during a neutralization reaction. When you consider that the net ionic equation of many acid-base neutralization reactions is H⁺(aq) + OH⁻(aq) → H₂O(l), the counterions of the H⁺(aq) and OH⁻(aq) are the aqueous spectator ions that comprise the salt. These ions are electrolytes, as they are charged species that can carry a current in solution; they are ionic compounds by definition since they're composed of cations and anions; and, as aqueous species, they're clearly dissolved in water.

Statements C, E, and F, as a whole, generally aren't true of such salts.

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2 years ago

A chemist encounters an unknown metal. They drop the metal into a graduated cylinder containing water, and find the volume chang

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Answer:

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Explanation:

The computation of the density of the metal is shown below;

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2 years ago

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2 years ago

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2 years ago

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oee [108]

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Explanation:

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The released alpha particle is also known as helium nucleus.

$_Z^A\textrm{X}\rightarrow _{Z-2}^{A-4}\textrm{Y}+_2^4\alpha$

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To calculate A:

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Total atomic number on reactant side = total atomic number on product side

Z = 82 + 2

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The isotopic symbol of unknown element is $_{84}^{212}\textrm{Po}$

Hence, the original element is $_{84}^{212}\textrm{Po}$

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2 years ago