Subscripts are small lowered numbers that follow a chemical symbol. Example: H 2 O (2 atoms of Hydrogen, and one atom of Oxygen) The subscript represents the number of atoms of the element which are present. No subscript = 1
Examples: Water H₂O Sugar C₆H₁₂O₆ Salt NaCl Carbon Dioxide CO₂
Mixtures are a substance that is made of two or more substances (elements, compounds or both), but are NOT chemically combined.
The components can be separated back out by physical means.
Examples: Sea Water Soil Soda Salad Gases in the atmosphere