Admin Table of Contents
- 1 What property of matter is used to identify a substance?
- 2 What properties of matter can be seen without changing the identity of the materials?
- 3 What information would you need to know about a sample of air before you could classify the sample as a solution?
- 4 How did you determine the property of the materials?
What property of matter is used to identify a substance?
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.
What properties of matter can be seen without changing the identity of the materials?
Physical properties are properties that can be measured or observed without changing the chemical nature of the substance. Some examples of physical properties are: color (intensive) density (intensive)
Can physical properties be identified without changing the substance?
Physical properties are characteristics that can be observed without changing the identity of the substance. Examples are shape, mass, color, volume and texture. Other physical properties can be measured such as melting point, boiling point, strength, hardness and magnetism.
What information would you need to know about a sample of air before you could classify the sample as a solution?
Posing Questions: What information would you need to know about a sample of air before you could classify the sample as a solution, suspension, or colloid? I need to know what’s in the air. If there is dust, the air could be a suspension. If there is pollution, a colloid, or water drops, a solution.
How did you determine the property of the materials?
The mechanical and physical properties of materials are determined by their chemical composition and their internal structure, like grain size or crystal structure. Mechanical properties may be greatly affected by processing due to the rearrangement of the internal structure.
How many physical properties do you need to identify a substance?
These properties are classified as physical properties and chemical properties. Physical properties are those that can be determined or measured without changing the composition or identity of the substance. These properties include color, odor, taste, density, melting point, boiling point, conductivity, and hardness.