Matter
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What is matter?
Anything that has mass or takes up space
What is Chemistry?
The study of the properties of matter
What is an Element?
Substance that cannot be broken down chemically
What is an atom?
Makes up everything Has properties of an element
What is a Compound?
Substance made up of two or more elements
What is a Molecule?
Smallest unit of a substance
What is a Chemical Formula?
Combination of chemical signals
What is a Pure substance?
Either a single element or compound Definite chemical and physical properties
What is a mixture?
Combination of two or more substances that don’t chemically combine
What is a heterogeneous mixture?
When a substance is mixed but not the same throughout
What is a homogeneous mixture?
When substances are mixed together and are the same throughout
What is a miscible liquid?
Like gasoline, made up of different liquids that form a new liquid
What is an immiscible liquid?
When substances are mixed together but separate and don’t form anything new Like water and oil
Melting point?
The point at which a solid turns into a liquid
Boiling point?
The point at which a liquid begins to boil
Density?
The different of mass and volume of a substance
What is reactivity?
The ability of a substance to combine chemically with another
Flammability?
The ability of a substance to catch fire
Physical properties ?
Physical properties can be observed easily. Helps to identify things
Chemical properties?
Not easy to observe. Describes how different substances will react.