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Copy of ELEMENTS, COMPOUNDS AND MIXTURES
Transcript of Copy of ELEMENTS, COMPOUNDS AND MIXTURES
What are mixtures and how are they similar and different from compounds?
Mixtures are composed of
two or more different substances
that keep their own individual properties and are combined physically (mixed together).
Mixtures are similar to compounds b/c they are composed of
two or more
are different from compounds
b/c they are
Matter Tree Map
you can see the different parts and separate them by physical means
it is evenly mixed
What are elements and how do they relate to compounds?
Think of examples for the following:
Make sure you write them down.
What is a solution?
Another name for a homogeneous mixture
Element, compound, or mixture?
Number your paper from 1-6 tell if picture is an example of a element, compound, or mixture?
Examples of Elements and Compounds
Ex of an Element : Any element off the periodic table
Na, C, K, He
What are homogeneous and heterogeneous mixtures?
Heterogeneous mixture, substance is not uniform throughout, meaning you can see the different parts.
Elements are pure substances that
be changed into simpler substances.
Elements are composed of
Compounds are pure substances that are composed of 2 or more types of elements that are
Compounds can only be changed into simpler substances called elements by
Example of a compound:
any 2 elements chemically
NaCl, CO, CO
Homogeneous mixture, substances are evenly mixed and cannot be visibly distinguished.
Solution - A mixture in which a solute is dissolved in a solvent.
Solute - smaller component that is dissolved
Solvent - substance that does the dissolving
What is a suspension?
A mixture in which the particles are large enough to separate over time.
What is a colloid?
Some Homogeneous Characteristics
A mixture that has particles small enough to remain dispersed throughout the mixture
DOES NOT SEPARATE
Read the envelope at your table.
Work with your table to complete the challenge.
Given a sample, students will use separation techniques to separate the sample.
3) Inquiry Lab
Complete practice sheet and turn in to your classes basket at the front of the room.