The unit for measuring frequency is Hertz (Hz).

The mole is the SI unit for measuring the amount of substance.

Molality is defined as moles of solute per kilogram of solvent, hence the unit is mol/kg.

Molarity is defined as moles of solute per liter of solution, hence the unit is mol/L.

The SI unit for pressure is Pascal (Pa), which is equivalent to N/m².

The equation of a hyperbola with transverse axis along the x-axis is x^2/a^2 - y^2/b^2 = 1.

The equation of an ellipse with foci at (0, ±c) and vertices at (0, ±a) is y^2/a^2 + x^2/b^2 = 1.

Aldehydes contain the functional group -CHO, which is characterized by a carbonyl group (C=O) bonded to a hydrogen atom.

Aldehydes contain the functional group -CHO, which is characterized by a carbonyl group (C=O) bonded to a hydrogen atom.

Carboxylic acids contain the -COOH functional group.

Alcohols contain the hydroxyl group (-OH) as their functional group.

The sarcomere is the basic functional unit of skeletal muscle, responsible for muscle contraction.

The general formula for alkenes is C_nH_(2n), where n is the number of carbon atoms.

The general formula for alkynes is C_nH_(2n-2), where n is the number of carbon atoms.

The GCD of 48 and 180 is 12, as it is the largest number that divides both without a remainder.

Cesium (Cs) is the heaviest alkali metal.

The aorta is the largest artery in the human body, carrying oxygenated blood from the heart to the rest of the body.

The Antarctic Desert is the largest desert in the world, covering about 14 million square kilometers.

The largest prime number less than 20 is 19.

Beryllium (Be) is the lightest alkaline earth metal.

The Brahmaputra is the longest river in India, flowing for about 2,900 kilometers.

Plasma is composed of approximately 90% water, with proteins, electrolytes, and nutrients making up the remaining 10%.

Butane has the molecular formula C4H10.

Hydrogen is the most abundant element in the universe, making up about 75% of its elemental mass.

Protium, which has no neutrons, is the most abundant isotope of hydrogen, making up about 99.98% of hydrogen found in nature.

P2O5 is the most acidic oxide among the given options, as it forms phosphoric acid in water.

P2O5 (phosphorus pentoxide) is the most acidic oxide among the given options.

Fluorine is the most electronegative element in the p-block.

Fluorine is the most electronegative element in the periodic table.

Rubidium (Rb) is the most electropositive element among the given options.