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ira [324]
3 years ago
6

Rank the following compounds from largest to smallest according to their expected magnitude in lattice energy. Rank from largest

to smallest lattice energy To rank items as equivalent, overlap them. a. Cs1 b. KI c. MgS d. KBr e. BeO Largest Lattice Energy Smallest Lattice Energy
Chemistry
2 answers:
fiasKO [112]3 years ago
8 0

Answer:

It's inorder

b,e,d,c and a

Explanation:

Due to electronegativty difference

Ahat [919]3 years ago
3 0

Answer:

BeO, MgS, KBr, KI, CsI

Explanation:

Hello,

The lattice energy is defined as "a measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity", therefore it will be larger in compounds composed by ions with high charge  and ions with small radius .

Thus, the largest is BeO (2+ 2- and both of them are small), next MgS (2+ 2- as the BeO, nonetheless it has bigger ions), afterwards KBr (1+ 1- considering Br- to be smaller than I-) , then KI [1+ 1 considering I- larger than Br- and K+ smaller than Cs+]  and finally CsI.

Best regards.

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3 years ago
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iris [78.8K]

Answer:

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3 years ago
What is the molarity of a naoh solution if 39.1 ml of a 0.112 m h2so4 solution is required to neutralize a 25.0-ml sample of the
aleksandrvk [35]
The reaction between NaOH and H₂SO₄ is as follows;
2NaOH + H₂SO₄ ---> Na₂SO₄ + 2H₂O
stoichiometry  of base to acid is 2:1
NaOH is a strong acid and H₂SO₄ is a strong acid, therefore complete ionization into their respective ions takes place.
number of acid moles reacted - 0.112 M / 1000 mL/L x 39.1 mL = 0.0044 mol
the number of base moles required for neutralisation = 0.0044 x 2 = 0.0088 mol
Number of NaOH moles in 25.0 mL - 0.0088 mol
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8 0
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There is no sodium found in nature in pure form due to its reactivity. What does this say about activation energy of the reactio
Yuki888 [10]

Answer:

The activation energy of a chemical reaction is the energy that is required to be supplied for a chemical reaction to take place. The activation energy for the reaction of sodium is low compared to the energy released such that the reaction of sodium and water is spontaneous resulting in the melting of the sodium into liquid form

The activation energy of a candle wax is much higher, requiring the ignition of the wick which burns and in turn melts the candle wax to release vapors that burns alongside the wick to produce sooth carbon dioxide, carbon monoxide and water vapor and release of heat energy which also fuels further combustion of the candle wax and wick

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Explanation:

7 0
3 years ago
Reaction of (r)-2-chloro-4-methylhexane with excess nai in acetone gives racemic 2-iodo-4-methylhexane. what is the explanation
saveliy_v [14]

I believe this question has the following five choices to choose from:

 

>an SN2 reaction has occurred with inversion of configuration

>racemization followed by an S N 2 attack

>an SN1 reaction has taken over resulting in inversion of configuration

>an SN1 reaction has occurred due to carbocation formation

>an SN1 reaction followed by an S N 2 “backside” attack

 

 

The correct answer is:

an SN1 reaction has occurred due to carbocation formation 

4 0
3 years ago
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