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grrr i hate tests! Mixture compounds and elements.

suspension ex. carbon dioxide, water, ammonia
colloid ex. milk jello pudding
do the elements in a compound keep their properties? NO
ratio a # that is like a fraction tht shows how the amount of 1 thing compares to the amount of something is used.
how do compound combine? in set ratios
How do i know if it is a comound? the items in the substance are chemically combined
reaction when 2 or more substances chemically combine some ex. of reaction explosion light heat
mixture def when 2 or more substances are mixed together but are not chemically combined.
mixture ex pizza kool aid jello milk italian dressing muddy water
do mixture have ratios? NO
Distallation a process tht seperates based on boiling points
magnet a tool used to seperate mixtures that have iron or magnet metals in them
do substances in a mixture keep their properties? yes you can taste both salt and water in a mixture of salt water
centrifuge a tool that spins test tybes really fast
periodic table the list of every known element
compound def. a pure substance made of 2 or more elements chemically combined
what are examples of metalloids? silicon boron antimony
is a metalloid a mixture? no it is an element
matalloids def/properties elements that can be shiny and conduct when mixed with other things.
what sre some examples of nonmetals? oxygen and carbon
nonmetal def/properties an element that is dull brittle and a bad conductor
solution ex. a heterogeneous mixture that has big pieces the pieces either can settle out or can be filtered
element def. a pure substance that cannot be seperated
pure substance def. a substance with only one type of particle
pure substance examples elements and compounds
can a pure substance be broken down into simpler substances? yes compounds it can with only chemical changes though
most elements belong to what category? metals
metal def./properties an element that is shiny malleable and a good conductor of electricity.
what are the 3 categories of an element? metal nonmetal and metalloid
characteristic properties ex. boiling point melting point density
characteristic properties def. properties that do not depend on the amount of material
Created by: bigmac23