What quantity can be calculated for a solid compound, given only the formula of the compound and the periodic table of elements

Answer: A solid compound in a sealed container is a covalent compound because it has a low melting point.

Explanation:

Ionic compounds have strong electrostatic forces which are strong in nature and cannot be broken down at low temperature.

Whereas covalent compounds have Vanderwaal forces which are weak in nature. Therefore, covalent compounds melts at low temperature.

Thus, it can be concluded that a solid compound in a sealed container is a covalent compound because it has a low melting point.

Answer: The answer is d

Explanation:

Let us study about it .

Explanation:

Evaporation

It is the process of converting liquid into vapors .

Condensation

It is the process of converting  vapors back into liquid state .

1. Suppose if we have a sealed container and we are supplying it with no or little heat , we will see that as we increase heat , the particles starts moving faster .
2. When they move they also colloide and transfer energies .
3. The kinetic energies of certain molecule increase to an extent that they leave the other particles and escape in atmosphere .
4. That is evaporation occurs .At the same time when these vapors collide with each other or with the walls of container they get cooled and again get converted to liquid state .

It is seen that  a equilibrium is reached when "rate of evaporation becomes equal to rate of condensation ".

I chose d and got it wrong. The correct answer is b.

Both CH4 and CH3Cl have tetrahedral shapes, the presence of a more electronegative atom (chlorine) in CH3Cl leads to an uneven distribution of electron density and gives it a polar nature, whereas CH4 remains nonpolar due to the symmetric distribution of electron density among the identical hydrogen atoms.

The polarity of a molecule is determined by the presence of polar bonds and the molecular geometry of the molecule.

In both CH4 (methane) and CH3Cl (chloromethane), the central carbon atom is surrounded by four other atoms, which gives them a tetrahedral shape.

In CH4, all four surrounding atoms are hydrogen (H) atoms. Hydrogen and carbon have similar electronegativity values, meaning the shared electrons in the carbon-hydrogen bonds are equally attracted to both atoms.

This results in a nonpolar molecule since the electron distribution is symmetrical around the central carbon atom.

In CH3Cl, one of the hydrogen atoms in CH4 is replaced by a chlorine (Cl) atom. Chlorine is more electronegative than carbon, creating an unequal sharing of electrons in the carbon-chlorine bond.

The chlorine atom attracts the shared electrons more strongly, creating a partial negative charge (δ-) on the chlorine and a partial positive charge (δ+) on the carbon.

Know more about methane:

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