Among the listed liquids, heptane (C₇H₁₄) has the greatest molecular weight
Thus the strongest intermolecular forces, lead to the lowest vapor pressure at the same temperature
Ammonia (NH₃) has a higher boiling point than phosphine (PH₃)
Ammonia exhibits hydrogen bonding, a stronger intermolecular force than the dipole-dipole forces in phosphine.
Be(OH)₂ is an amphoteric hydroxide, meaning it can act as both an acid and a base.
Mg(OH)₂ and Ca(OH)₂ are basic hydroxides.
When a gas expands suddenly (an adiabatic expansion), it does work on the surroundings without any heat exchange.
As a result, the internal energy of the gas decreases, leading to a decrease in temperature.
PbCl₂ (lead(II) chloride) is ionic.
Lead(II) chloride forms an ionic lattice structure with chloride ions,
while PbCl₄ is a covalent complex.
In NaCl, each sodium ion (Na⁺) is surrounded by six chloride ions (Cl⁻) in a cubic close-packed structure.
Therefore, the coordination number of Na in NaCl is 6.
The order of a reaction can be fractional, whereas molecularity (the number of molecules involved in the reaction)
It is always a whole number and cannot be fractional
A phrase is a group of words that does not give a complete sense and lacks a verb.
It is a unit of language that functions as a single unit, but does not express a complete thought.
A moving charged particle is surrounded by both an electric field and a magnetic field.
The electric field is due to the charge itself, and the magnetic field is generated due to the particle's motion.
The liver performs a relevant FUNCTION in retaining blood glucose levels.
Following intake of food, extra glucose may be saved in the liver as glycogen .
This is inspired by insulin release.