Chemistry Concepts

Covalent Bond

• A bond in which electrons are transferred from one atom to another.

• A bond in which electrons are shared between the bonded atoms.

• A bond that occurs between metal and non-metal atoms.

• A bond that involves the attraction between charged ions.

Covalent Compound

• A compound resulting from ionic bonding.

• A compound resulting from covalent bonding.

• A compound that contains only metals.

• A compound that is formed through hydrogen bonding.

Ionic Compound

• A compound resulting from ionic bonding.

• A compound formed by covalent bonding.

• A mixture of metals and non-metals.

• A compound that does not conduct electricity.

Decomposition Reaction

• A reaction where two or more compounds combine to form a single compound.

• A reaction in which a single compound is broken down into two or more simpler compounds.

• A reaction that involves the exchange of ions between two compounds.

• A reaction that occurs only in the presence of a catalyst.

Endothermic Reaction

• A chemical reaction that releases energy into its surroundings.

• A chemical reaction in which energy is absorbed from its surroundings.

• A chemical reaction that occurs spontaneously without energy input.

• A chemical reaction that only occurs at high temperatures.

Combustion Reaction

• An endothermic reaction that absorbs heat.

• A reaction that produces only carbon dioxide.

• An exothermic reaction in which oxides are usually formed.

• A reaction that occurs only in the presence of water.

Exothermic Reaction

• A chemical reaction that absorbs energy from its surroundings.

• A chemical reaction in which energy is released to its surroundings.

• A reaction that occurs only at high temperatures.

• A reaction that produces a gas as a byproduct.

Reaction Rate

• The speed at which a chemical reaction occurs under specific conditions over time.

• The amount of product formed in a reaction.

• The temperature at which a reaction takes place.

• The concentration of reactants in a solution.

Catalyst

• A substance that is consumed during a chemical reaction.

• A substance that slows down a chemical reaction.

• A substance present during a chemical reaction that speeds up the reaction but is not used up or changed during the reaction.

• A substance that changes the products of a chemical reaction.

Polymer

• A molecule consisting of repeating chemical units.

• A type of simple sugar.

• A single atom of an element.

• A compound formed by ionic bonds.