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QuestionAnswer
Law of Conservation of Mass Nothing is created nor destroyed.
Physical Change A change changing an objects appearance.
Chemical Change A change changing chemical properties that form a new substance for an object.
Element Simplest form of matter.
Chemical Formula A representation of a substance using symbols for its constituent elements.
Element (Diatomic) Molecule A molecule that have 2 atoms of the same element.
Compound Molecule A molecule that is made of more than 1 atom.
Law of Conservation of Mass Nothing is created nor destroyed.
Physical Change A change changing an objects appearance.
Chemical Change A change changing chemical properties that form a new sucstance for an object.
Element Simplest form of matter.
Chemical Formula A representation of a substance using symbols for its constituent elements
Coefficient (in a chemical equation) It tells the number of molecules. 4H20. Coefficent is 4.
Subscript (in a chemical equation) It tells the number of a certain type of atom in one substance. The small 2 in H20.
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