Flashcard 2

Front

What is a central atom in a trigonal planar electron geometry?

Back

The central atom in a trigonal planar electron geometry is the atom that is bonded to three other atoms, forming a flat, triangular shape.

Front

What is a dimer in chemistry?

Back

A dimer is a complex formed from two identical molecules that are bonded together, often through hydrogen bonds.

Front

What is the chemical formula for a compound formed from a group 1 element and a group 17 element?

Back

The chemical formula is typically XZ₂, where X is the group 1 element and Z is the group 17 element.

Front

What determines the density of gas samples at the same temperature?

Back

The density of gas samples at the same temperature is determined by the molar mass and the number of particles in a given volume.

Front

What is the relationship between ionic charge and the strength of attraction in ionic compounds?

Back

The strength of attraction between cations and anions in ionic compounds is greater when the ionic charges are higher.

Front

What is hydrogen bonding?

Back

Hydrogen bonding is a type of weak chemical bond that occurs when a hydrogen atom covalently bonded to an electronegative atom is attracted to another electronegative atom.

Front

What is the significance of molar mass in comparing gas densities?

Back

Molar mass is significant because gases with the same molar mass and temperature will have the same density.

Front

What is a crystal lattice?

Back

A crystal lattice is a three-dimensional arrangement of atoms or ions in a crystalline solid, where the ions are held together by ionic bonds.

Front

How do ionic compounds differ from covalent compounds in terms of bonding?

Back

Ionic compounds are formed by the transfer of electrons from one atom to another, while covalent compounds are formed by the sharing of electrons between atoms.

Front

What is the role of electronegativity in bond formation?

Back

Electronegativity determines how strongly an atom attracts electrons in a bond; higher electronegativity means a stronger attraction.