Chemistry Eriksen 9/26/30 Vocab quiz

element

A pure substance consisting entirely of one type of atom that cannot be broken down into simpler substances by ordinary chemical means.

compound

A pure substance formed when two or more different elements are chemically bonded together in a fixed ratio.

Solution

A specific type of homogeneous mixture where one substance (the solute) is completely dissolved and evenly distributed within another substance (the solvent).

alloy

A mixture composed of two or more elements, where at least one of the elements is a metal (for example, steel or brass), designed to improve properties like strength or corrosion resistance.

atom

The basic unit of a chemical element and the smallest particle of matter that retains the defining properties of that element.

mixture

A combination of two or more substances that are physically combined rather than chemically bonded, meaning each substance retains its individual chemical identity.

physical change

A change in the form, state, or appearance of a substance that does not alter its underlying chemical composition (such as melting ice or chopping wood).

chemical change

A process in which one or more substances undergo a chemical reaction to transform into entirely new substances with different chemical properties (such as rusting iron or burning wood).