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Atoms & Mixtures

Across
An element is any substance that cannot be _________ down into another substance. pg 9
The _________ theory states that all matter is made of atoms. pg 10
Iron can be separated from a mixture using a ___________. pg 13
Mixtures are made of substances that do not bond together. Therefore, you can ___________ the parts. pg 13
Compounds have properties that are ________ from the properties of the elements that made them. pg 11
Compounds combine at a fixed ________. pg 11
Atoms have a positive nucleus surrounded by a _________ of electrons. pg 10
Down
A ___________ is when two or more atoms are held together by bonds. pg 10
Carbon monoxide has carbon and oxygen combining at a ratio of one to _____. pg 11
When atoms combine they form a chemical ________. pg 10
Greek philosophers speculated that all matter was made from the four ___________ earth, air, fire, and water. pg 9
A __________ is formed when substances combine without bonding. pg 12
An oxygen molecule is made of _________ (a #) oxygen atoms. pg 10
Soy Sauce is a homogeneous mixture because the substances in it are _________ mixed. pg 12
A chemical ________ represents the number of each element in a compound. pg 11
Solids can be separated from _______ using filtration. pg 13