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Advocard [28]
2 years ago
14

The lattice energy of a salt is related to the energy required to separate the ions. For which of the following pairs of ions is

the energy that is required to separate the ions largest? (Assume that the distance between the ions in each pair is equal to the sum of the ionic radii.)(A) Mg²⁺ and O²⁻(B) Ba²⁺ and S²⁻(C) Na⁺ and F⁻ (D) K⁺ and Br⁻

Chemistry
1 answer:
kati45 [8]2 years ago
6 0

Answer:

(A) Mg²⁺ and O²⁻

Explanation:

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Answer:

Choose any of these and it should be correct:

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Explanation:

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2 years ago
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The radius of a nickel atom is 125 pm. How many nickel atoms would have to be laid side by side to span a distance of 1.74 mm
Darya [45]

Answer:

<em>6960000 Nickel atoms</em>

<em></em>

Explanation:

radius = 125 pm = 125 x 10^-12 m

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2 years ago
Athletic trainers use instant ice packs that can be cooled quickly on demand. Squeezing the pack breaks an inner container, allo
MrMuchimi

Answer:

The heat flow is  best described as an exchange of heat between the system and the surroundings.

Explanation:

Heat is a form of energy which is transferred spontaneously from a hotter body to a cool body as a result of temperature differences between the substances. In the problem , it can be said that heat moves from  the surroundings which may be a fractured knee of the athlete to the ice packs.  

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erastova [34]

Explanation:

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2 years ago
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