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Science Vocab

States that the mass of an isolated system will remain constant over time. Law of conservation of mass
Physical Change are changes affecting the form of a chemical substnace. Physical Change
Chemical Changes occur when a substance combines with another to form a new substance. Chemical Change
Simpleast form of matter. It can't be broken down. Element
Chemical Formula isa way of expressing information about the atoms that constitute a particular chemical compound. Chemical Formula
Molecule of only 1type of atom. Element Molecule
Mode of more than 1type of atom. Compound Molecule
Shorthand form for writing what reactants are used nad what products are formed in a chemical reaction. Chemical Equation
A process that produces chemical change. Chemical Reaction
Reactants are the substances that exist before the reaction begins. Reactants
The substances that form as a result of the reaction are called products. Products
It tells the number of molecules. Coefficient
It tells the number of a certain type of atom in one molecule. Subscript
Diatomic molecules are molecules composed only of two atoms. Diatomic
Created by: s1200120