The two classes of matter are pure substances and mixtures. A pure substance is free from contaminants. A pure substance is composed of one element or one compound. A mixture is composed of two or more different substances, not chemically combined. Mixtures are physically combined either homogenous or heterogeneous.
Example of Pure Substances
Below is an example of pure substances:
1. Hydrogen gas
2. Gold metal
3. Sucrose
4. Sodium bicarbonate
5. Ammonia
6. Diamond
7. Copper wire
8. Silicon chip
Example of Mixture
Below is an example of a mixture:
• Homogenous mixture
1. Seawater
2. Wine
3. Vinegar
4. Steel
5. Blood
• Heterogeneous mixture
1. Oil and water
2. Fruit salad
3. Milk and water
4. Coffee and water
5. Spaghetti
Read more:
Pure substance. https://brainly.ph/question/7000941
Mixture https://brainly.ph/question/3407500
Is toothpaste a matter or non-matter? https://brainly.ph/question/2583211
