Chemistry Quiz on Ions and Bonds

An atom that has gained or lost electrons, resulting in a net positive or negative charge.

A compound formed by the electrostatic attraction between positively charged metal ions (cations) and negatively charged non-metal ions (anions).

A group of two or more non-metal atoms chemically bonded together by sharing their electrons.

A compound formed by the sharing of electrons between non-metal atoms.

Atoms or ions that have the same number of electrons.

The outermost electron shell of an atom, containing electrons that participate in chemical bonding.

Electrons found in the valence shell of an atom, responsible for chemical bonding.

A way to represent the arrangement of electrons in an atom's energy levels, using the number of electrons in each level like 2.8.8.

Representations of atoms and molecules using dots to symbolize valence electrons.

A representation of an ion showing its symbol, charge, and the number of valence electrons.

A chemical reaction where two or more reactants combine to form a single product.

A chemical reaction where a single reactant breaks down into two or more products.

A chemical reaction where a more reactive element displaces a less reactive element from a compound.

A chemical reaction where the positive and negative ions of two reactants switch places.

A reaction involving the breaking and forming of chemical bonds, typically involving the release or absorption of heat.

A chemical reaction where heat is released into the surroundings, causing a temperature increase.

A chemical reaction where heat is absorbed from the surroundings, causing a temperature decrease.

A representation of a chemical reaction using symbols and formulas to show the reactants, products, and stoichiometric coefficients.

Calcium nitride is an ionic compound composed of calcium cations (Ca²⁺) and nitride anions (N³⁻). The charges of the ions must balance, hence the formula Ca3N2 to represent the compound.

Sodium fluoride is an ionic compound composed of sodium cations (Na⁺) and fluoride anions (F⁻). The charges of the ions are equal and opposite, so the formula is simply NaF.

Methane is a simple hydrocarbon that is also known as natural gas. It is a colorless and odorless gas at room temperature.

Carbon disulfide is a highly flammable liquid with a sweet odor. It is used as a solvent in various industries.

Hydrobromic acid is a highly corrosive and acidic solution of hydrogen bromide (HBr) in water. It is a strong acid, meaning it ionizes completely in water.

Carbon monoxide is a colorless and odorless gas. It is toxic and can be fatal even in small amounts.

Sulfur trioxide is a colorless gas with a pungent odor. It is a major air pollutant and contributes to acid rain.

The reaction of water with silicon tetrachloride results in the formation of silicon dioxide and hydrogen chloride gas. This is a balanced chemical equation because each reactant and product molecule is represented with the same number of atoms on both sides of the equation.