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Mila [183]
3 years ago
13

For a particular reaction, ΔH=−111.4 kJ/mol and ΔS=−25.0 J/(mol·K).

Chemistry
1 answer:
PtichkaEL [24]3 years ago
3 0
That’s the answer ^^^^
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A central atom has two lone pairs on opposite sides and four single bonds. What is the molecule geometry of the result?
Alexeev081 [22]

The correct answer is C. square planar

According to the Valence Shell Electron Pair Repulsion Theory(VSEPR), The shape of a molecule depends on the number of electron pairs in the molecule.

VSEPR theory was first coined by Gillespie  and Nyhlom in 1957 as an improvement over the Sidgwick - Powell theory.

According to this theory, the shape of a molecule is determined by the number of electron pairs that surround the valence shell of the central atom in the molecule.  The electron pairs are positioned as far apart in space as possible to minimize repulsion of electron pairs.

However, the presence of lone pairs distorts the shape anticipated for the molecule on the basis of VSEPR.

For a molecule having six electron pairs, an octahedral geometry is expected(electron domain geometry). However, the presence of two lone pairs which are positioned at opposite side of the four single bonds leads to an observed square planar molecular geometry.

brainly.com/question/13591921

4 0
2 years ago
The following image shows the Atomic level of an element. In the image, which of
svp [43]

Answer:

D. The cation will use a type II naming system

Explanation:

As the element becomes stable, Option D is NOT taking place. That means that as the element becomes stable, the cation will NOT use a type II naming system. This is because in Type II binary compounds, the metal is not found in either Group 1 or Group 2 on the periodic table. It is as a result of this that the cation will not use a type II naming system.

Group 1 and Group 2 elements make use of type I naming system because in Type I binary compounds, the metal is present.

Option D is the correct answer.

4 0
3 years ago
The U.S. quarter has a mass of 5.67 g and is approximately 1.55 mm thick.
Whitepunk [10]
So 575 ft=175260mm so all you have to do is divide
175260/1.55=<span>113070.967742</span>
3 0
3 years ago
What are hybrid orbitals?
Ann [662]
Hybrid Orbitals: are used to describe the orbitals in covalently bonded atoms sp,sp2,sp3

You can find the hybridization by adding the number of bonded atoms and the number of lone pairs.

For example in BF3. The central atom (B) is bonded to three atoms. So the hybridization is sp2

In NH3, the central atom (N) is bonded to three atoms and has one lone pair. The hybridization is sp3
3 0
2 years ago
Empirical formula for 6. 63.52% Fe, 36.48% S
emmasim [6.3K]
The empirical formula for this would be FeS
8 0
3 years ago
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