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LaurenScience Vocab.
Question | Answer |
---|---|
Law of Conservation of Mass | states that the mass of an isolated system (closed to all matter and energy) will remain constant over time. |
Physical Change | changes affecting the form of a chemical substance, but do not change the chemical composition of that substance. |
Chemical Change | it occurs when a substance combines with another to form a new substance. |
Element | Simpilest form of matter that cannot be broken down. |
Chemical Formula | A faster way of showing/writing atoms, molecules, and equations. and show the type and quantity of atoms and molecules that are present. |
Element (Diatomic) Molecule | a molecule of only one type of atom with a #2 subscript. |
Compound Molecule | a molecule thats made up of more than 1 type of atom. |
Chemical Equation | a way of describing a chemical reaction. |
Chemical Reaction | a process that leads to the transformation of one set of chemical substances to another. |
Reactants (of a chemical equation) | substances that go through a chemical change. |
Products (of a chemical equation) | substances that results from a chemical change. |
Coefficient (in a chemical equation) | tells the number of molecules in a formula, equation, or even a compound molecule. a blank one means theres only one. |
Subscript (in a chemicle equation) | tells the number of a certain type of atom in a molecule. |