b. catalytic turnover more than substrate binding.
c. substrate binding, but not catalytic turnover.
d. catalytic turnover, but not substrate binding.
Answer:
Explanation:
The various substitutions affect catalytic turnover more than substrate binding.
B.) Positively charged
C.) Strongly ionic
D.) Negatively charged
Answer:
See explanation below.
Explanation:
Both carbon and silicon are members of group 4A(now group 14) i n the periodic table. Carbon is the first member of the group. CO2 is a gas while SiO2 is a solid. In SiO2, there are single bonds between silicon and oxygen and the geometry around the central atom is tetrahedral while in CO2, there are double carbon-oxygen bonds and the geometry around the central atom is linear. CO2 molecules are discrete and contain only weak vanderwaals forces.
Again, silicon bonds to oxygen via its 3p orbital while carbon bonds to oxygen via a 2p orbital. As a result of this, there will be less overlap between the pi orbitals of silicon and that of oxygen. This is why tetrahedral bonds are formed with oxygen leading to a covalent network solid rather than the formation of a silicon-oxygen pi bond. A covalent network solid is known to be made up of a network of atoms of the same or different elements connected to each other continuously throughout the structure by covalent bonds.
In SiO2, each silicon atom is surrounded by four oxygen atoms. Each corner is shared with another tetrahedron. SiO2 forms an infinite three dimensional structure and melts at a very high temperature.
Carbon and oxygen form a molecular compound CO2 with weaker covalent bonds, while silicon and oxygen form a covalent network solid SiO2 with stronger, three-dimensional covalent bonds.
The difference in bonding between carbon and oxygen compared to silicon and oxygen is due to the different nature of their chemical bonds. In the case of carbon and oxygen, they form a molecular compound CO2, where carbon and oxygen atoms share electrons to form covalent bonds. This is because carbon and oxygen have similar electronegativities, so they can share electrons equally. The covalent bonds in CO2 are relatively weak, allowing the compound to exist as a gas at room temperature and pressure.
On the other hand, silicon and oxygen form a covalent network solid with the formula unit SiO2, known as quartz. In this case, silicon and oxygen atoms are covalently bonded in a three-dimensional network structure, where each silicon atom is bonded to four oxygen atoms and each oxygen atom is bonded to two silicon atoms. This network structure gives SiO2 its high melting point and hardness, making it a solid at room temperature and pressure.
In summary, the difference in bonding between carbon and oxygen compared to silicon and oxygen is that carbon and oxygen form a molecular compound with weaker covalent bonds, while silicon and oxygen form a covalent network solid with stronger, three-dimensional covalent bonds.
#SPJ3
According to the molecular geometry, there are two lone pairs on central atom of BrF₃.
Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.
It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.
They provide information about geometry by taking into considerations the vibrational and rotational absorbance of a substance.Neutron and electron diffraction techniques provide information about the distance between nuclei and electron density.
Learn more about molecular geometry,here:
#SPJ2
Answer:
BrF3 has 2 lone pairs (4 unshared electrons)
Explanation:
The number of oxygen atoms in 19.3 g of sodium sulfate (Na₂SO₄) is 3.27×10²³ atoms
We'll begin by calculating the number of mole in 19.3 g of sodium sulfate (Na₂SO₄).
Mass of Na₂SO₄ = 19.3 g
Molar mass of Na₂SO₄ = (23×2) + 32 +(16×4)
= 46 + 32 + 64
= 142 g/mol
Mole = mass / molar mass
Mole of Na₂SO₄ = 19.3 / 142
1 mole of Na₂SO₄ contains 4 moles of O.
Therefore,
0.136 mole of Na₂SO₄ will contain = 0.136 × 4 = 0.544 mole of O
Finally, we shall determine the number of atoms in 0.544 mole of O.
From Avogadro's hypothesis,
1 mole of O = 6.02×10²³ atoms
Therefore,
0.544 mole of O = 0.544 × 6.02×10²³
0.544 mole of O = 3.27×10²³ atoms
Thus, 19.3 g of sodium sulfate (Na₂SO₄) contains 3.27×10²³ atoms of oxygen.
Learn more: brainly.com/question/25115547
Answer:
3.27·10²³ atoms of O
Explanation:
To figure out the amount of oxygen atoms in this sample, we must first evaluate the sample.
The chemical formula for sodium sulfate is Na₂SO₄, and its molar mass is approximately 142.05.
We will use stoichiometry to convert from our mass of Na₂SO₄ to moles of Na₂SO₄, and then from moles of Na₂SO₄ to moles of O using the mole ratio; then finally, we will convert from moles of O to atoms of O using Avogadro's constant.
19.3g Na₂SO₄ · · ·
After doing the math for this dimensional analysis, you should get a quantity of approximately 3.27·10²³ atoms of O.
1s22s22p3
1s22s22p4
1s22s22p5
The electronic configuration that matches that of the model is 1s²2s²2p³; option B.
Electronic configuration of atoms of elements is the arrangement of electrons in the electron shells or orbitals in atom.
The electronic configuration of an atom depends on the atomic number of the element.
The atomic number of nitrogen is 7. This means that it has seven electrons in its orbitals.
The electronic configuration that matches that of the nitrogen atom is 1s²2s²2p³.
In conclusion, the electronic configuration of nitrogen indicates that it has seven electrons in its orbitals.
Learn more about electronic configuration at: brainly.com/question/26084288
#SPJ1
Note that the complete question is given below:
Consider the model of the nitrogen atom. Which electron configuration matches this model?
1s22s22p2
1s22s22p3
1s22s22p4
1s22s22p5