The molecules CH4 and CH3Cl both have tetrahedral shapes. Why is CH4 nonpolar whereas CH3Cl is polar?

2 answers:

6 0

Because in CH4 the valence electrons of Carbon are being pulled away from the nucleus with the same force (since all hydrogen has the same electronegativity).So charges are equally distributed throughout the atom and the atom is non-polar. In CH3Cl Cl has a different electronegativity than H, so charges aren't equally distributed and therefore the molecule is polar.

vova2212 [387]3 years ago

3 0

Answer is:

1) in molecule of methane (CH₄) all the atoms around the central element (carbon) are equivalent (four hydrogens) and it has a net dipole moment of 0 (vectors of dipole moments cancel each other, dipole moment is zero).

2) in molecule of chloromethane (CH₃Cl) there are different elements (one chlorine and three hydrogen atoms) surrounding the central atom (carbon) and it has higher net dipole moment.

You might be interested in

What is the average kinetic energy of any substance at 0 K?

Aloiza [94]

The answer is zero!

let me know if you need help with anything else! :)

5 0

3 years ago

Read 2 more answers

Why can it be difficult to demonstrate the Law of Conservation of Mass in action when a chemical reaction takes place in an open

rjkz [21]

Answer:

In simple words, in an open system, the system that has external interactions. Such interactions can take the form of information, energy, mass etc. So keeping this definition in mind, the law of conservation of mass in open system is difficult because when chemical reaction takes places things change form and some things are released as energy, That energy than escapes the system and interacts with other surrounding. This is why it is difficult to demonstrate Law of Conservation of Mass because the changes in mass due to chemical reaction cannot be accounted for properly since the lost mass (in form of energy) was lost to environment.

Whereas, in closed system, all components occur inside a closed container or something where external interactions are minimal to none so the energy lost due to chemical reaction does not escape the system thus it can be accounted for properly to demonstrate the law of conservation of Mass.

Explanation:

Too many words but should get the point across hopefully!

3 0

3 years ago

he unknown solution is prepared by mixing CaCO3(s) and HCl(aq). The H2CO3 produced in this reaction decomposes to CO2 (g) and H2

inessss [21]

Answer:

CaCO₃(s) + 2 H⁺(aq) + 2 Cl⁻(aq) ⇒ Ca²⁺(aq) + 2 Cl⁻(aq) + H₂O(l) + CO₂(g)

Explanation:

Let's consider the molecular equation that occurs when CaCO₃(s) reacts with HCl(aq).

CaCO₃(s) + 2 HCl(aq) ⇒ CaCl₂(aq) + H₂O(l) + CO₂(g)

The complete ionic equation includes all the ions and the compounds that do not dissociate in water.

CaCO₃(s) + 2 H⁺(aq) + 2 Cl⁻(aq) ⇒ Ca²⁺(aq) + 2 Cl⁻(aq) + H₂O(l) + CO₂(g)

8 0

3 years ago

The release of a gas from a chemical reaction is very quick. A scientist wants to measure what is released, but in small increme

Ganezh [65]

An inhibitor, which slows down the reaction enough to measure the release of gas.

5 0

3 years ago

Read 2 more answers

What are the three end products of the oxidation-reduction reactions involved in metabolism?

san4es73 [151]

Answer: The three end products of the oxidation-reduction reactions involved in metabolism are WATER, CARBON DIOXIDE and ATP.

Metabolism refers to the sum of all chemical reactions occurring in the body. It includes both catabolism and anabolism. Every metabolic reaction is characterized by oxidation-reduction reactions. The metabolic pathways include respiration, photosynthesis, etc. In all these reactions water is produced. In respiration CO2 is also a product. In general. in every metabolic reaction either an organic molecule is broken or synthesized producing CO2, water and energy.

7 0

3 years ago