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26 Cards in this Set
- Front
- Back
Mixture
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- matter that consists of 2/more substances mixed but NOT chemically combined
1. can be found in diff amounts 2. can be separated 3. substances retain their properties |
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Heterogeneous
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- substance that DOES NOT apper the same throughout
aka least mixed ex. cement |
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Homogeneous
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- mixture that does appear the same throughout
aka well mixed ex. lotion |
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Colloid
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- type of homogenous mixture in which particles are mixed but NOT DISSOLVED
ex. clouds,smoke,paint,butter,mayo |
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Solution
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- homogenous mixture in which one substance is dissolved in another
aka best mixed ex. air,iced tea,ocean water |
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Solute
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- substance dissolved in the solution
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Solvent
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- substance that does the dissolving in a solution
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Soluble
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- ABLE to be dissolved (in water)
ex. sugar is soluble in water |
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Insoluble
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- UNABLE to be dissolved (in water)
ex. rocks are insoluble in water |
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Solubility
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- amount of a solute that can be completely dissolved in a given amount of solvent at a specific temp
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Alloy
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- a sloution of 2/more metals / a metal & nonmetal that has the properties of a metal
ex. gold |
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Pure Substance
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- substance made of only 1 kind of material & has definite properties
- same throughout/doesn't vary from place to place |
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Element
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- simplest type of a pure substance
ex. Lithium,Iodine,Gold |
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Atom
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- smallest particle of an element that has all the properties of that element
ex. one atom of iron - atoms are the building blocks of matter |
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Atoms are represented by ...
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- chemical symbols
ex. Copper(Cu) Carbon(C) |
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Compounds
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- substances in which 2/more mixtures are chemically combined; can also be pure substances
1. seperated by chemical processes 2. found in a specific amount ex. 2H + 1O = water molecule 3. usually becomes new substance w/different properties |
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Most compounds are made of...
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- molecules
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Molecules
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- substance made up of 2/more substances chemically combined
- smallest particle of a compound that has all the properties of that compound |
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Chemical Formula
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- combination of chemical symbols used to represent a compound
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Chemical Equation
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- symbolic way to show a chemical reaction
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Proton
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- large
- positive charge - inside nucleus |
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Neutron
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- large
- neutral - inside nucleus |
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Electron
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- small
- no one is sure where it is - negative charge - circling around nucleus in the energy levels |
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Atomic Mass
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# of protons + # of neutrons
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Atomic Number
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= # of protons
= # of electrons |
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3 Differences Between Compounds and Mixtures
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1)mixtures can be found in different amounts
compounds cannot 2) mixtures can be separated compounds cannot 3) in mixtures substances retain their properties compounds usually become new subsstance w/diff properties |