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Lannom
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Question | Answer |
---|---|
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. |