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Galina-37 [17]
3 years ago
10

Use Coulomb's Law to calculate the energy of a copper ion and an oxide ion at their equilibrium ion-pair separation distance.

Chemistry
1 answer:
Tanzania [10]3 years ago
8 0
E= (231 aj/pm) (-2)(2)/77+140 Pm

E= 231 aj (-4)/217

E= -868 aj/ 217

E= -4aj







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What is the total number of electrons in a<br> Mg2+ ion?(1) 10 (3) 14<br> (2) 12 (4) 24
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The answer is (1) 10. The protons of Mg atom is 12. So the Mg atom has 12 electrons. The Mg2+ ion has lost two electrons so it has two positive charge. Then the answer is 10 electrons.
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What is the empirical formula for a compound that is 29.44\% calcium, 23.55% sulfur, and 47.01% oxygen? This compound is a commo
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Answer:

Empirical formula is CaSO₄.

Explanation:

Given data:

Percentage of calcium =29.44%

Percentage of sulfur = 23.55%

Percentage of oxygen = 47.01%

Empirical formula = ?

Solution:

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Number of gram atoms of S = 23.55 / 32 = 0.74

Number of gram atoms of O = 47.01 / 16 = 3

Atomic ratio:

            Ca                      :        S                :         O

           0.74/0.74           :     0.74/0.74      :       3/0.74

               1                     :          1              :          4

Ca : S : O = 1 : 1 : 4

Empirical formula is CaSO₄.

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  • Formulation of hypothesis
  • Experimentation
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learn more:

Experiment brainly.com/question/1621519

#learnwithBrainly

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Chlorine has an atomic number of 17.
zlopas [31]

Answer:

A. 17

Explanation:

6 0
3 years ago
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