Answers
According to the valence bond theory the triple bond in ethyne consists of one sigma bond and two pi bonds.
Explanation:
Atomic number of carbon is 6. The ground state electronic configuration of carbon is as follow,
1s², 2s², 2p²
And the excited state electronic configuration of carbon is as follow,
1s², 2s¹, 2px¹, 2py¹, 2pz¹
In ethyne the 2s¹ orbital and 2px¹ orbitals having unpaired electrons form sigma bonds by head to head overlapping with orbitals of hydrogen atom and carbon atom. The remaining 2py¹ and 2pz¹ orbitals of both carbons overlap perpendicular to the existing sigma bond resulting in the formation of two pi bonds.
Related Questions
As the speed of the particles decreases, -a. Intermolecular forces become strongerb. Intermolecular forces become weakerc. Intermolecular forces do not changed. Energy increasesEngshusratoway
In the important industrial process for producing ammonia (the Haber Process), the overall reaction is: N2(g) + 3H2(g) → 2NH3(g) + 24,000 calories A yield of ammonia, NH3, of approximately 98% can be obtained at 200°C and 1,000 atmospheres of pressure. How many grams of N2 must react to form 1.7 grams of ammonia?
What is the answer? Please
Chlorine (Cl2Cl2) is a strong germicide used to disinfect drinking water and to kill microbes in swimming pools. If the product is Cl−Cl−, was the elemental chlorine oxidized or reduced?
Answers
Answer:
1. micro
2. centi
3. milli
4. kilo
Explanation:
Prefixes, in mathematical exponents, are defined as the alphabetical names associated with the mathematical factors. Some examples are as follows:
10⁶ = Mega
10⁹ = Giga
10⁻⁹ = Nano
10⁻¹² = Pico
So, in order to name the metric system prefixes associated with each of the given mathematical factor, we first convert the factor into exponent form and then write its prefix, as follows:
10⁻⁶ = micro
1/100 = 0.01 = 1 x 10⁻² = centi
0.001 = 1 x 10⁻³ = milli
1000 = 1 x 10³ = kilo
b. 90°.
c. 109°.
d. 120°.
e. 180°.
Answers
Answer:
Explanation:
BrCl₃ is an interhalogen compound with a hybridization of sp³d. The approximate bond angles can be predicted from the structure (attached below). Although, the lewis structure might be predicted to be trigonal bipyramidal from the structure, it is however a T-shaped geometry because of it's two lone pairs.
Also, from the structure attached, it can be predicted that the approximate bond angles about the central atom is 120° (360 ÷ 3) since each of the three chlorine atoms is equally spaced about the central atom.
The Lewis structure for BrCl₃ is attached to the image below. The bond angles around the central atom, bromine (Br), are 90 degrees between the bromine and each chlorine atom. Therefore, option B is correct.
A Lewis structure, also known as an electron-dot structure or Lewis dot structure is a diagram that represents the valence electrons of an atom or molecule.
Bromine (Br) is in Group 7A and has 7 valence electrons, while each chlorine (Cl) atom in Group 7A also has 7 valence electrons.
Br: 1 atom × 7 valence electrons = 7 valence electrons
Cl: 3 atoms × 7 valence electrons = 21 valence electrons
Total valence electrons = 7 + 21 = 28
To learn more about the bond angle, follow the link:
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Answers
The chemical reaction has been the low energy reaction containing electrons rearrangement, while nuclear reactions have been the higher energy reactions with change in nuclei.
What are nuclear reactions ?
The term nuclear reactions is defined as when there has been the including the change in the nuclei of the atom. However, the reaction has been known as the chemical reaction when the change has been processed in the electrons with the rearrangement.
The nuclear reactions have made up of a more amount of energy to be liberated, while the amount of energy included in the chemical reaction has been smaller.
Thus, the chemical reaction has been the low energy reaction including electrons rearrangement, while nuclear reactions have been the high energy reactions with change in nuclei.
For more information about the nuclear reactions, refer to the link:
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Answers
"206.46 J/g" energy required to heat the solid iron.
Energy due to change in temperature:
The movements or the activity of microscopic particles known as atoms, molecules, or ions in solids, solvents, as well as gases.
Thermal energy may go from one item towards the another one.
Given:
Temperature, °C
°C
Change,
We know the relation,
→
By putting the values,
J/g
Thus the answer above is right.
Find out more information about energy here:
Answer:
Explanation:
Hello,
In this case, since the energy due to the change of temperature is computed via:
Thus, since the specific heat of iron is 0.444 J/(g°C), the heat per unit of mass turns out:
Best regards.
Scientific data related to the ecosystem and the effect of environmental changes.
Political action by governments and other organizations such as environmental
protection groups.
Economic issues such as cost of wood products, fuel for heat, price of electricity, and
income levels of local people.
Answers
Answer:
ALL of these are factors in conservation.
Explanation:
One mole of carbon would contain 6.02 x 1023 carbon atoms, but one mole of chlorine would contain 6.02 x 1023 diatomic chlorine molecules.
For ionic compounds, the representative particle is the formula unit of the compound (eg. NaCl).
One mole of water (H2O) contains 6.02 x 1023 atoms.
Avogadro's number is the number of discrete, representative units found in one mole of a substance.
Answers
Answer:
Option C
Explanation:
Avogadro number represent discrete unit of a substance which can be atom, molecule, ion etc.
In one mole of H2O there will be 6.02 x 1023 molecules and not atoms.
Molecule of H2O is the discrete unit of water mole and not atom.
Hence, option C is correct choice of answer