Notes chemistry
1. What is a Mixture?
A mixture is a physical combination of two or more substances
that are not chemically combined.
Examples:
Air
Salt + water
Sand + iron filings
Characteristics of Mixtures
Components are not chemically combined.
Each component retains its own properties.
Components can be separated by physical methods.
The composition can vary.
2. Types of Mixtures
A. Homogeneous Mixture
Composition is uniform throughout.
Components cannot be seen separately.
Examples:
Salt solution
Sugar solution
Air
B. Heterogeneous Mixture
Composition is not uniform.
Components can be seen separately.
Examples:
Sand and water
Oil and water
3. Methods of Separation of Mixtures
Method
Used For
1. What is a Mixture?
A mixture is a physical combination of two or more substances
that are not chemically combined.
Examples:
Air
Salt + water
Sand + iron filings
Characteristics of Mixtures
Components are not chemically combined.
Each component retains its own properties.
Components can be separated by physical methods.
The composition can vary.
2. Types of Mixtures
A. Homogeneous Mixture
Composition is uniform throughout.
Components cannot be seen separately.
Examples:
Salt solution
Sugar solution
Air
B. Heterogeneous Mixture
Composition is not uniform.
Components can be seen separately.
Examples:
Sand and water
Oil and water
3. Methods of Separation of Mixtures
Method
Used For