Chemical Equations

Cards (9)

What is a reactant?
The starting materials in a chemical reaction
What is a product?
New substances produced by a chemical reaction
What is a balanced equation?
A symbol equation in which there are equal numbers of each type of atom on either side of the equation
When balancing an equation can you change the small numbers?
No only the big numbers
How would you represent hydrogen in a symbol equation?
A H with a small 2 because hydrogen is diatomic (it exists as molecules made from 2 atoms).
What does the state symbol (s) mean?
solid
What does the state symbol (l) mean?
liquid
What does the state symbol (g) mean?
gas
What does the state symbol (aq) mean?
aqueous