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Phys. Chem changes

Physical and chemical changes

QuestionAnswer
a change that occurs without changing the identity of a substance Physical change
a change that occurs by changing the identity of a substance chemical change
when 2 or more substance are combined physically mixture
when 2 or more substance are combined chemically and can;t be separated by physical means compound
Parts that are mixed evenly Homogenous Mixture
Parts that are mixed unevenly Heterogenous Mixture
type of mixture where the solution dissolves/ mixed evenly in the solvent Solution
part of the solution that dissolves solute
Part of the solution that the solvent dissolves in solvent
smallest unit of matter Atom
one of the 100 more substances are combined chemically and can;t be separated by physical means Element
how much matter is in some thing Mass
the elements and compounds you start with in a reaction/equation Reactant
the elements and compounds that you end with in a reaction/equation product
the ability to react with another element or compound reactivity
the number in front of the molecule Coefficient
the number to the bottom right of an element that tells how many atoms there are that element Subscript
Group 1 a highly reactive group of metals that makes compound with group 7 (17) Alkali Metals
Groups 7 (17) a highly reactive group of non- metals that makes compounds with group 1 Halogens
Group 8 (18) a group of non- metals that are all gases at room temperature Noble gases
Created by: dodabug13
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