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Phys and Chem change

Physical Change A change that occurs without changing the identity of the substance
Chemical Change A change that occurs by changing the identity of the substance
Mixture When 2 or more substance are combined physically
Compound When 2 or more substances are combined chemically and can't be separated by physical means.
Homogeneous Mixture Parts are mixed evenly throughout (same)
Heterogeneous Mixture Parts are uneven throughout (different)
Solution Type of mixture where the solute is dissolved/mixed evenly in the solvent
Solute The part of the solution that dissolves
Solvent The part of the solution that the solute dissolves in
Atom Smallest unit of matter
Element One of the 100 or more units that make up all matter, and found on the Periodic Table.
Mass How much matter is in something
Reactant The elements and compounds you start with in a reaction/equation
Product The elements and compounds that you end with in a reaction/equation
Reactivity The ability to react with another element or compound
Coefficient The number in the front of the molecule
Subscript The number to the bottom right of an element that tells how many atoms there are of that element
Alkali Metals Group 1 a highly reactive group of metals that makes compounds with Group 7 (17)
Halogens Group 7 (17) a highly reactive group of non-metals that makes a compound with Group 1
Noble Gases Group 8 (18) a group of non-reactive, non-metals that are all gases at room temperature
Created by: duwesm