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Law of Conservation of Mass

Horizontales
The smallest unit of a chemical element
A number written in front a chemical formula telling you how many copies of that molecule is present.
Uses chemical symbols and numbers to represent the elements and compounds in a chemical reaction
A number written below and to the right of a chemical symbol showing how many atoms of the element are present
Verticales
A substance that has mass and takes up space
Elements and compounds on the left-hand side of the equation that undergo a chemical change
Represents the name of the element on the periodic table.
New substances produced in a chemical reaction on the right-hand side of the chemical reaction
The amount of matter in an object