Physical changes are changes affecting the form of a chemical substance, but not its chemical composition.
100
What are Heterogeneous Materials?
Matter that is different from place to place.
100
Lithium
Li
100
In
Indium
200
Oxygen
O
200
What is a Chemical Change?
A usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition.
200
What are Homogeneous Materials?
Matter that is the same throughout.
200
Beryllium
Be
200
Sn
Tin
300
Potassium
K
300
What is Chemistry?
The branch of science that deals with the identification of the substances of which matter is composed.
300
What is a Element?
A pure substance that cannot be broken down by chemical means.
300
Sodium
Na
300
Y
Yttrium
400
Zinc
Zn
400
What is a Pure Substance?
Pure substances are defined as substances that are made of only one type of atom or only one type of molecule.
400
What are Solutions?
Homogeneous substance that has the same properties of its components.
400
Calcium
Ca
400
Ga
Gallium
500
Tungsten
W
500
What is a Compound?
A thing that is composed of two or more separate elements; a mixture.