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10 Cards in this Set

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  • Back
  • 3rd side (hint)
The study of matter and how it changes
What is chemistry?
"what things are made of & how things change"
Anything that has mass and occupies space.
What is matter?
has mass & volume & takes up space
A substance that cannot be broken down into simpler substances.
What is an element?
composed of like atoms
The smallest particle that has the properties of an element.
What is an atom?
splitting or combining it releases energy
A substance made of atoms of more that one element bound together.
What is a compound?
rust/ironIIIoxide is one example
The smallest unit of a substance that exhibits all of the properties characteristic of that substance.
What is a molecule?
Example is H2O/ water.
The chemical symbols and numbers indicating the atoms contained in the basic unit of a substance.
What is a chemical formula?
uses subscripts to show the number of atoms in each element
Any matter that has a fixed composition and definite properties.
What is a pure substance?
cannot be broken down by physical changes ; water.
Describes two or more liquids that are able to dissolve into each other in various proportions.
What is miscible?
salt in water or gasoline
Describes two or more liquids that do not mix into each other.
What is immiscible?
oil and water; flour in water.