Unit 4 Test Review: Properties of Matter and Bonds

Front

What is viscosity?

Back

Viscosity is a measure of a fluid's resistance to flow. A substance with low viscosity flows quickly, while a substance with high viscosity flows slowly.

Front

What are physical properties?

Back

Physical properties are characteristics of a substance that can be observed or measured without changing its identity, such as color, density, and boiling point.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that can only be observed during a chemical reaction, such as flammability or reactivity.

Front

What type of forces are responsible for the interactions between molecules?

Back

Intermolecular forces are the forces that mediate interaction between molecules, including attractions and repulsions.

Front

How does viscosity affect the flow of liquids?

Back

Liquids with low viscosity flow quickly, while those with high viscosity flow slowly.

Front

What is the difference between physical and chemical changes?

Back

A physical change alters the form or appearance of a substance without changing its identity, while a chemical change results in the formation of new substances.

Front

What is an example of a physical property?

Back

An example of a physical property is the boiling point of water, which is 100 degrees Celsius at standard atmospheric pressure.

Front

What is an example of a chemical property?

Back

An example of a chemical property is the ability of iron to rust when exposed to oxygen and moisture.

Front

What are some common intermolecular forces?

Back

Common intermolecular forces include hydrogen bonding, dipole-dipole interactions, and London dispersion forces.

Front

How does temperature affect viscosity?

Back

Generally, as temperature increases, the viscosity of a liquid decreases, allowing it to flow more easily.