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3 years ago

Which of the following covalent bonds is the strongest?

Chemistry

1 answer:

Basile [38]3 years ago

7 0

Answer:

a) quadruple covalent bond

Explanation:

Quadruple covalent bonds are the strongest covalent bonds. The more the number of bonding pairs, the stronger the bond becomes.

A covalent bond is formed by sharing of electrons between two species.
They are usually between compound with similar electronegativities.
The number of bonds between the atom determines the bond strength.

Single < double < triple < quadruple covalent bonds.

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Three Balanced equations for Ammonium salt+Alkali=Salt+water+carbon dioxide

arlik [135]

Answer:

NH₄Cl (aq) + NaOH (aq) -> NaCl (aq) + H₂O (l) + NH₃ (g)

(NH₄)₂CO₃ (aq) + 2KOH (aq) -> K₂CO₃ (aq) + 2H₂O (l) + 2NH₃(g)

NH₄NO₃ (aq) + LiOH (aq) -> LiNO₃ (aq) + H₂O (l) + NH₃ (g)

Explanation:

The gas liberated when an alkali reacts with an ammonium salt is NH₃ (ammonia), not CO₂.

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3 years ago

Choose the statement below that is TRUE.

Leni [432]

Answer: Option (a) is the correct answer.

Explanation:

A weak acid is defined as an acid that dissociates partially when dissolve in water or a polar solvent.

For example, acetic acid is a weak acid and when dissolved in water it dissociates partly into ions as follows.

$CH_{3}COOH(aq) \rightleftharpoons CH_{3}COO^{-}(aq) + H^{+}(aq)$

And, a strong acid is defined as an acid which when dissolved in water dissociates completely into ions.

For example, HCl is a strong acid and when dissolved in water it dissociates completely.

$HCl \rightarrow H^{+} + Cl^{-}$

Thus, we can conclude that the statement a weak acid solution consists of mostly non-ionized acid molecules, is true.

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3 years ago

A horizontal row on the periodic table is called a______________________? Please help !!!!!!!!

ad-work [718]

Answer:

Period

Explanation:

horizontal is a period and verticle is a group

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4 years ago

Read 2 more answers

Which term defines the amount that a solute can dissolve into a solution?

Readme [11.4K]

The correct answer for the question that is being presented above is this one: "C. solubility level." The <span>term defines the amount that a solute can dissolve into a solution is called the solubility level. The higher the solubility level, the faster it dissolves.</span>

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3 years ago

List the 4 main components of air in their molecular form.

ICE Princess25 [194]

Answer:

Air is made up of 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and other gases in meager amounts.

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3 years ago