Chapter 3 | Polyatomic Ions and Molecular Compounds

These flashcards cover key terms and definitions related to molecular compounds and polyatomic ions discussed in the lecture notes.

Molecular Compounds

Compounds formed by the sharing of electrons between nonmetals.

Carbon Monoxide (CO)

A colorless, odorless gas that is a product of incomplete combustion.

Dinitrogen Trioxide (N₂O₃)

A chemical compound consisting of two nitrogen atoms and three oxygen atoms.

Silicone Tetrachloride (SiCl₄)

A chemical compound composed of silicon and chlorine.

Penta-

A prefix indicating five in chemical nomenclature.

Hexa-

A prefix indicating six in chemical nomenclature.

Hydrogen Phosphite (HPO₃)

An anion derived from phosphorous acid, containing phosphorus, hydrogen, and oxygen.

Bisulfate (HSO₄⁻)

An anion with one hydrogen atom, sulfur, and four oxygen atoms;

Thiosulfate (S₂O₃²⁻)

A compound containing sulfur and oxygen, typically used in various chemical applications.

Hydroxide (OH⁻)

A negatively charged ion consisting of one oxygen atom and one hydrogen atom.

Nitrate (NO₃⁻)

A polyatomic ion consisting of one nitrogen atom and three oxygen atoms.

Phosphate (PO₄³⁻)

A polyatomic ion consisting of one phosphorus atom and four oxygen atoms.

Hypochlorite (ClO⁻)

A polyatomic ion with one chlorine and one oxygen atom.

Sulfate (SO₄²⁻)

A polyatomic ion composed of one sulfur atom and four oxygen atoms.

Oxide (O²⁻)

A negatively charged ion formed when oxygen gains two electrons.

Acetate (C₂H₃O₂⁻)

A polyatomic ion derived from acetic acid, containing two carbon atoms, three hydrogen atoms, and two oxygen atoms.

Superoxide (O₂⁻)

A reactive species that contains a superoxide anion, formed by the reaction of molecular oxygen with a base.

Permanganate (MnO₄⁻)

A polyatomic ion consisting of one manganese atom and four oxygen atoms.

Dichromate (Cr₂O₇²⁻)

A polyatomic ion containing two chromium atoms and seven oxygen atoms.