. Which of the following is a physical property? Check more than one if multiple choices are correct. 1 pointAcidityDensityTemperatureReactivitySolubility

1. Break Down the Problem

We are tasked with identifying physical properties from the given options. To do this, we need to understand the distinction between physical and chemical properties.

2. Relevant Concepts

• Physical Properties: Characteristics that can be observed or measured without changing the substance's chemical identity. Examples include density, temperature, and solubility.
• Chemical Properties: Attributes that can only be observed during a chemical reaction, which results in a change of the substance's chemical identity. Examples include acidity and reactivity.

3. Analysis and Detail

• Acidity: This is a chemical property, as it refers to the ability of a substance to donate protons (H⁺ ions) in a reaction.
• Density: This is a physical property, defined as mass per unit volume ($\text{Density} = \frac{\text{mass}}{\text{volume}}$).
• Temperature: This is a physical property, indicating the thermal energy of a substance.
• Reactivity: This is a chemical property, describing how a substance might react chemically with other substances.
• Solubility: This is a physical property, representing the ability of a substance to dissolve in a solvent.

4. Verify and Summarize

Upon reviewing the definitions:

• Physical Properties: Density, Temperature, and Solubility are physical properties.
• Chemical Properties: Acidity and Reactivity are chemical properties.

Final Answer

The correct physical properties are:

• Density
• Temperature
• Solubility