Select all correct answers.
Which of the following are physical properties of matter?
Group of answer choices
Solubility
Combustibility
Odor
Acidity
Reactivity
Melting Point
Melting Point
The physical properties of matter from the given options are:
- Solubility: It represents the ability of a substance to dissolve in another substance.
- Melting Point: It indicates the temperature at which a solid substance changes into a liquid state.
Therefore, the correct answers are:
- Solubility
- Melting Point
To determine which of the options are physical properties of matter, we need to understand what physical properties are. Physical properties are characteristics or attributes of a substance that can be observed or measured without changing the substance's identity or composition.
Here is an explanation for each option:
1. Solubility: Solubility refers to a substance's ability to dissolve in a particular solvent. Since it does not change the substance's composition, solubility is indeed a physical property.
2. Combustibility: Combustibility is the ability of a substance to burn or ignite when exposed to fire or heat. Combustibility is classified as a chemical property, not a physical property, as it involves a chemical reaction between the substance and oxygen.
3. Odor: Odor refers to the characteristic smell or scent of a substance. It is a physical property because it can be observed without changing the substance's identity.
4. Acidity: Acidity is a measure of the concentration of acidic substances in a solution. While acidity is an important property, it is not considered a physical property because it involves the chemical behavior of substances in a solution.
5. Reactivity: Reactivity is the ability of a substance to undergo a chemical reaction with other substances. Like combustibility, reactivity is a chemical property, not a physical property.
6. Melting Point: Melting point is the temperature at which a substance changes from its solid state to a liquid state. Melting point is a physical property since it can be observed without changing the substance's identity.
Therefore, the correct answers are:
- Solubility
- Odor
- Melting Point