one or two letters used to represent the name of an element

An arrow symbol that shows a reaction has taken place

chemical formulas written on the left side of the arrow symbol

Subscript

A number in front of any chemical formula showing the number of molecules involved in the chemical reaction

chemical formulas written on the right side of the arrow in a chemical equation

The starting substances in a reaction; The new substances formed in a chemical reaction

begins with a capital letter and used to represent atoms

shows the number of atoms of each element present in a substance

In a chemical equation, means yields or produces

A compound is

A change in which substances are changed into one or more new substances with different properties

A way to show the number of atoms in a compound with symbols and numbers

This describes what happens in a chemical reaction

A substance produced or used in process involving atoms or molecules

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