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Science Vocab1234560
Vocab
Question | Answer |
---|---|
Law of Conservation of Mass | Nothing is ever created or destroyed |
Physical Change | A usually reversible change in the physical properties |
Chemical Change | Reaction involving the changing of the atoms of 1 or more substances |
Element | Something that can be broken down to anything else |
Chemical Formula | A rep. of a substance using symbols |
Diatomic Molecule | Molecules composed of only 2 atoms |
Compound Molecule | Molecules composed of 2 or more atoms |
Chemical Equation | A rep. of a chemical reaction using symbols of the elements to indicate the amount of substance |
Chemical Reaction | A process that involves changes in the structure and energy content of atoms |
Reactants | Any substance that undergoes a chemical change |
Products | a substance obtained from another |
Coefficient | A number that is constant for a given substance, body, or process under specified conditions |
Subscript | A number or figure that shows how many of a certain type of element there is |