Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
anything that has mass and takes up space
|
matter
|
|
a substance that cant be broken down into simpler substances by chemical means
|
element
|
|
the smallest unit of an element that contains the chemical properties of that element
|
atom
|
|
a group of atoms that are held together by chemical forces; the smallest unit of matter that can exist by itself and retain all of a substance's chemical properties
|
molecule
|
|
a substance made of atoms of two or more different elements joined by chemical bonds
|
compound
|
|
shows how many atoms of each element are in a unit of a substance
|
chemical formula
|
|
a sample of matter, either a single element or a single compound, that has definite chemical and physical properties (chemically combined)
|
pure substance
|
|
a combination of two or more substances that are not chemically combined
|
mixture
|
|
substances are not evenly distributed
|
heterogeneous
|
|
components are evenly distributed
|
homogeneous
|
|
able to be mixed
|
miscible
|
|
not able to be mixed
|
immiscible
|
|
the physical form of a substance
|
state
|
|
the temperature and pressure at which a solid becomes a liquid
|
melting point
|
|
the temperature and pressure at which a liquid becomes a gas
|
boiling point
|
|
the ratio of the mass to the volume of a substance
|
density
|
|
the ability to burn
|
flammibility
|
|
the capacity of a substance to combine chemically with another substance
|
reactivity
|
|
a change of matter from one form to another without a change in chemical properties
|
physical change
|
|
a change that occurs when one or more substances change into entirely new substances with different properties
|
chemical change
|
|
a physical change when molecules of one substance spread out into another without changing the molecules
|
dissolving
|