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zubka84 [21]
3 years ago
12

Potassium and iodine have formed a bond. Prior to this the potassium gave up an electron. It became a _____.

Chemistry
2 answers:
Zielflug [23.3K]3 years ago
7 0
Potassium gave up an ion an became a positive ion (cation).  K⁺
Sliva [168]3 years ago
6 0
Neutral ion because     f das fds f d fd f d f  f sdf  f sd  fds
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Lattice energy is Question 4 options: the energy given off when gaseous ions combine to form one mole of an ionic solid the ener
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Answer:

Lattice energy is <em>the energy required to convert a mole of ionic solid into its constituent ions in the gas phase</em>

Explanation:

Lattice energy is usually calculated by the Born-Haber cycle, from the affinity energies and sublimation ethalphy values. It is used as an estimation of the ionic energy strength between the ions in an ionic compound.

It is defined as the energy needed to broke 1 mol of a given ionic compound into its ions in the gaseous state. For example, the lattice energy for sodium chloride (NaCl) is the energy required to separate 1 mol of solid ionic compound (NaCl(s)) and produce the sodium and chlorine ions in the gas phase: Na⁺(g) and Cl⁻(g).

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Explanation:

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What is the pH of a solution made by mixing 30.00 mL 0.10 M HCl with 40.00 mL of 0.10 M KOH? Assume that the volumes of the solu
nirvana33 [79]

Answer:

pH = 12.15

Explanation:

To determine the pH of the HCl and KOH mixture, we need to know that the reaction is  a neutralization type.

HCl  +  KOH  →  H₂O  +  KCl

We need to determine the moles of each compound

M = mmol / V (mL) → 30 mL . 0.10 M = 3 mmoles of HCl

M = mmol / V (mL) → 40 mL . 0.10 M = 4 mmoles of KOH

The base is in excess, so the HCl will completely react and we would produce the same mmoles of KCl

HCl  +  KOH  →  H₂O  +  KCl

3 m       4 m                       -

             1 m                      3 m

As the KCl is a neutral salt, it does not have any effect on the pH, so the pH will be affected, by the strong base.

1 mmol of KOH has 1 mmol of OH⁻, so the [OH⁻] will be 1 mmol / Tot volume

[OH⁻] 1 mmol / 70 mL = 0.014285 M

- log [OH⁻] = 1.85 → pH = 14 - pOH → 14 - 1.85 = 12.15

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3 years ago
Describe the structure of an atom.
pochemuha
The answer would be A
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Se llena un recipiente con el mismo número de moles de oxígeno y dióxido de carbono. ¿Cuál de las siguientes proposiciones es la
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D. Las moléculas de CO2 tienen la misma velocidad promedio que las moléculas de O2. es la respuesta correcta

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