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Kazeer [188]
2 years ago
5

Which substance can be classified as an Arrhenius Acid?

Chemistry
2 answers:
xxMikexx [17]2 years ago
7 0

Answer:

<u>B</u>

Explanation:

An Arrhenius Acid is a substance that dissociates in water to form Hydrogen (H⁺) ions.

Let's write the dissociation reactions of each of the options :

⇒ KF = K⁺ + F⁻

⇒ HF = H⁺ + F⁻

⇒ KOH = K⁺ + OH⁻

⇒ LiH = Li⁺ + H⁻

Only HF forms a Hydrogen ion on dissociation, hence it is the Arrhenius Acid.

Gelneren [198K]2 years ago
5 0

Answer:

HF

Explanation:

Arrhenius acids are the substances that when dissolved in water are capable to give an H+ ion

Here

HF on dissolving into water releases H+ and F- ion so it's a Arrhenius acid

Option B

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Sucrose is stored in dry and closed container, sealed properly.

Explanation:

  • Sucrose is nothing but the table sugar which we use daily in our life.
  • Sucrose is formed by the combination of fructose and glucose so, it called a disaccharide because two monosaccharides are converted to form sucrose.
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What neutral element has the electron configuration described by the Aufbau diagram above.​
devlian [24]

Answer:

Aluminium.

Explanation:

The above electronic configuration can be written in a simplified form as shown below:

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Next, we shall determine the number of electrons in the atom of the element as follow:

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Number of electron = 13

Next, we shall determine the number of protons.

Since the element is in its neutral state,

The number of electrons and protons are equal i.e

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Proton = Electron = 13

Proton = 13

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The atomic number of an element is simply the number of protons in the atom of the element i.e

Atomic number = proton number

Proton = 13

Atomic number = 13

Comparing the atomic number of the element with those in the periodic table, the element with the above electronic configuration is aluminium since no two elements have the same atomic number.

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