Chemical Reactions 1
In a chemical reaction the atoms of the starting substances do what?
Rearrange
A chemical reaction that takes place in an open bottle is called what type of system?
Open system
Solid water (ice cube) melting into liquid water is an example of a what?
Phase change
The starting substances (old) in a chemical reaction are called what?
Reactants
A chemical reaction that takes place in a closed bottle is called what type of system?
Closed system
What are unique characteristics to help identify substances?
Properties
The final substances (new) in a chemical reaction are called what?
Products
The chemical reaction that makes iron look a brown color is what?
Rusting
Starting substances
Reactants
The chemical reaction that breaks down water molecules (H2O) is called what?
Electrolysis
Is mixing powdered drink mix into water a chemical reaction?
No
Final Substances
Products
In a chemical reaction what happens to the mass of the substances?
It stays the same.
In a chemical reaction the number of atoms in the reactants must _____ the number of atoms in the products.
Be the same as / equal
In a chemical reaction atoms are neither created nor _____
Destroyed