Chapter One, Lesson Two: Classifying Matter Flashcards
Describe what makes up matter, and describe the properties of a mixture
1
Q
element
A
An element is a substance that cannot be broken down into any other substances by chemical or physical means.
2
Q
atom
A
An atom is the basic particle from which all elements are made.
3
Q
chemical bond
A
A chemical bond is a force of attraction between two atoms.
4
Q
molecule
A
A molecule is a group of two or more atoms held together by chemical bonds.
5
Q
compound
A
A compound is a substance made of two or more elements that are chemically combined in a set ratio.
6
Q
chemical formula
A
A chemical formula shows the elements in a compound and the ratio of atoms.
7
Q
mixture
A
A mixture is made of two or more substances that are together in the same place, but their atoms are not chemically bonded.
