What gives you a good clue that chemical reaction are used to convert natural resources into synthetic products?
• Synthetic materials and natural resources don't have any properties.
• The properties of synthetic materials and the natural resources used to make them are the same.
• It's impossible to compare and contrast the properties of synthetic and natural materials.
• The properties of synthetic materials and the natural resources used to make them are different.
The correct option is: The properties of synthetic materials and the natural resources used to make them are different.
When chemical reactions are used to convert natural resources into synthetic products, the properties of the synthetic materials are usually different from the properties of the natural resources used to make them. This difference in properties is a good clue that chemical reactions have taken place.
The correct answer is:
• The properties of synthetic materials and the natural resources used to make them are different.
When chemical reactions are used to convert natural resources into synthetic products, the properties of the resulting synthetic materials are usually different from the properties of the natural resources that were used. This change in properties indicates that a chemical reaction has taken place.