Sodium has the atomic number 11, indicating it has 11 protons.

Hydrogen has the atomic number 1.

The element with atomic number 6 is Carbon (C).

Calcium has the highest atomic number (20) among the first 20 elements.

Fluorine has the highest electronegativity.

Francium has the lowest electronegativity among the given elements.

Chlorine is found in Group 17, also known as the halogens.

Aluminium commonly exhibits a stable +3 oxidation state in its compounds.

The symbol 'Fe' stands for Iron, derived from its Latin name 'Ferrum'.

The symbol 'K' represents Potassium, derived from its Latin name 'Kalium'.

The color of the adsorbent does not affect the rate of adsorption, while temperature, surface area, and concentration do.

During the electrolysis of water, oxygen is produced at the anode.

During the electrolysis of water, oxygen is produced at the anode.

When an acid reacts with a metal, hydrogen gas is produced.

The reaction between hydrochloric acid (HCl) and sodium bicarbonate (NaHCO3) produces carbon dioxide (CO2) as one of the products.

Gay-Lussac's Law states that the pressure of a gas is directly proportional to its temperature at constant volume.

Noble gases are found in Group 18 of the periodic table, characterized by their lack of reactivity due to having a full valence shell.

C4H9I has the highest boiling point due to the larger molecular size and stronger van der Waals forces.

Butane has the highest boiling point among the given hydrocarbons due to its larger molecular size.

Butane is commonly used as a fuel in lighters.

Ampere's Law relates the magnetic field around a conductor to the current flowing through it.

The First Law of Thermodynamics states that energy cannot be created or destroyed, only transformed.

The Conservation of Momentum states that in a closed system, the total momentum remains constant if no external forces act on it.

NaCl has the highest electronegativity difference between sodium and chlorine, leading to a strong ionic bond.

Oxalic acid is a dicarboxylic acid with two carboxyl groups.

Butanoic acid is a saturated carboxylic acid.

Acetic acid is commonly used in the production of esters.

Dimethylamine is the most basic due to the electron-donating effect of the two methyl groups, which increases the availability of the lone pair on nitrogen.

In liquids, particles are close together but can move past each other, allowing liquids to flow.

In gases, particles are far apart and move freely, allowing them to fill the container they are in.