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3 years ago

12

How can we keep our voices in tip top shape? Please list the three things we can do to help our voices. Which would you say is m

ost important?

1 answer:

Alisiya [41]3 years ago

5 0

Answer:

help our vocos

Explanation:

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If a molecule with a central atom that has five regions of electron density has exactly one lone pair of electrons. What will it

Hoochie [10]

The molecular geometry of a molecule with a core atom that has five areas of electron density and precisely one lone pair of electrons is called a disphenoidal or seesaw molecular geometry.

What is meant by disphenoidal or seesaw molecular geometry?

Four bonds are made to an atom in the center of a disphenoidal or seesaw-shaped molecular structure, which has overall C2v structural symmetry. The fact that it resembles a playground seesaw is how it got the moniker "seesaw." Tetrahedral or, less frequently, square planar geometry is produced when four bonds to a center atom are present.

The core atom of a molecule with a steric number of 5 and bonds to 4 additional elements and 1 lone pair is said to be in the seesaw geometry.

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2 years ago

What's the difference between the structure of table salt and table sugar?

Karolina [17]

Table salt is a simple crystal of sodium chloride. Sugar is a complex carbohydrates molecule.

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4 years ago

The value of the equilibrium constant for a reaction

quester [9]

Answer:

a. changes with temperature.

Explanation:

Hello there!

In this case, according to the thermodynamic definition of the equilibrium constant in terms of the Gibbs free energy of reaction and the temperature of the system:

$lnK=-\frac{\Delta G}{RT}$

It is possible to figure out that the equilibrium constant varies as temperature does, not only on the aforementioned definition, but also in the Gibbs free energy as it is also temperature-dependent. Therefore, the appropriate answer is a. changes with temperature.

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6 0

3 years ago

Which was a testable idea that J.J. Thomson developed through his experiments?

LenaWriter [7]

Atoms contains small, negatively charged particles. His experiment showed that an atom contains negatively charged particles which was later known as electrons. This was confirmed by the Cathode Ray Experiment he conducted.

3 0

3 years ago

Read 2 more answers

Write the equilibrium constant expression for this reaction: CH3OH (aq)+Cl-(aq)-> CH3Cl(aq)+OH-(aq)

bulgar [2K]

Answer: $K_c=\frac{[CH_3Cl]\times [OH^-]}{[CH_3OH]\times [Cl^-]}$

Explanation:

Equilibrium constant is the ratio of the concentration of products to the concentration of reactants each term raised to its stochiometric coefficients. Pure solids are assumed to have a concentration of 1.

The given balanced equilibrium reaction is:

$CH_3OH(aq)+Cl^-(aq)\rightleftharpoons CH_3Cl(aq)+OH^-(aq)$

The expression for equilibrium constant for this reaction will be,

$K_c=\frac{[CH_3Cl]\times [OH^-]}{[CH_3OH]\times [Cl^-]}$

Thus the equilibrium constant expression for this reaction is $K_c=\frac{[CH_3Cl]\times [OH^-]}{[CH_3OH]\times [Cl^-]}$

5 0

3 years ago