Who is referred to as “the Father of Modern Chemistry”a. Andreas Vesalius
c. Robert Boyle
b. William Harvey
d. Antonine Lavoiser

Answers

Answer 1

Answer:

Antonine Lavoiser is referred to as “the Father of Modern Chemistry”. The answer is letter D. He was the one who discovered the role of oxygen in combustion processes. Oxygen is an oxidizing reagent.

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All radioactive nuclides undergo what

Answers

They undergo nuclear fission.

The shape of a molecule is tetrahedral. How many lone pairs are most likely on the central atom?zero
two
three
four

Answers

Answer: Zero lone pairs on the central atom.

Explanation:

Lone pairs and bond pairs together decides the geometry of the molecule.
Bond pairs together decides the shape of the molecule.

The molecule is with with tetrahedral shape which means that molecule has a tetrahedral geometry.

The value of number of electrons around the central atom with tetrahedral geometry according to VESPR theory is '4'. Which means that electrons around the central atom are 4.

Since, the molecule is in tetrahedral shape which means four bonds are pointing in direction towards the four vertices of tetrahedral which means their are zero lone pair present on the central atom.

The number of lone pairs that are most likely found on the central atom is zero. There are no lone pairs found on the central atom.

Limitation of the kinetic-molecular theory for a gas?

Answers

The following are some of the limitations of the kinetic-molecular theory for a gas:
- molecules do not have to be spherical.
- a gas will occupy volume than predicted
- there are reactions that can occur between gases, otherwise they wouldn't liquefy.

I hope this helps you

What is the correct name for SiCl5?

Answers

Answer:

SbCl5

Antimony pentachloride

Antimony pentachloride is a chemical compound with the formula SbCl5.

- wikipedia

What is the Bond Type and Molecular polarity of PCl3?

Answers

It is covalent bonding. The electrons are shared between the phosphorus and the chlorines.

covalent bonding is when electrons are shared between two elements.

molecular polarity is a little bit complicated, but I will try to explain ;)
PCl3 is an alternation on tetrahedral molecules.
It means that P has one lone pair of electrons. This pair of electrons are only attracted to the P nuclei and thus a greater freedom of motion.
This means that their orbital is bigger and this pushes the 3 Cl atoms closer together.
The angle between each Cl now is 107 and the angle between Cls and P is greater than 107.
Now, due to this shape, and also electronegativity (Cl is more electronegative than P meaning that it tends to hog the electrons they share closer to itself), PCl3 is polar. Electrons that are shared tend to flow closer towards the Cl than the P side.
Therefore, on the Cl side of the molecule it's, more negative. On the P side, it's more positive.

In the given question, bond type for the molecule $\rm PCl_3$ is covalent bond and molecular polarity of $\rm PCl_3$ is polar in nature, respectively.

Polarity is caused if it has an uneven distribution of electrons, causing one end of the molecule to be slightly positive and the other end to be slightly negative.

The bond type of $\rm PCl_3$ is covalent. Covalent bonds form when atoms share electrons to achieve a more stable electron configuration. In $\rm PCl_3$ , the phosphorus atom shares three of its valence electrons with three chlorine atoms to form three covalent bonds.

The molecular polarity of $\rm PCl_3$ is polar. In $\rm PCl_3$ , the three chlorine atoms exert a stronger pull on the shared electrons, causing them to be slightly negative, while the phosphorus atom is slightly positive. This creates a dipole moment, making the molecule polar.

Therefore, $\rm PCl_3$ has covalent bonds and it is a polar molecule.

Learn more about Polarity here:

brainly.com/question/14250786

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A scientist can explain how the brain recognizes odors.
True
False