Chem2: Chapter 1

Front

What is chromatography?

Back

A technique used to separate mixtures based on the movement of different components through a medium.

Front

What is an intensive physical property?

Back

A property that does not depend on the amount of substance present, such as density or texture.

Front

What is a chemical property?

Back

A characteristic of a substance that becomes evident during a chemical reaction, such as reactivity with water.

Front

What is the base SI unit of luminous intensity?

Back

Candela.

Front

How do you round 1289 g to three significant figures?

Back

1290 g.

Front

What is crystallization?

Back

A process where a solid forms from a solution, where the solid has a well-defined structure.

Front

What is sublimation?

Back

The process where a solid changes directly into a gas without passing through the liquid phase.

Front

What is an extensive physical property?

Back

A property that depends on the amount of substance present, such as mass or volume.

Front

What is the difference between intensive and extensive properties?

Back

Intensive properties do not change with the amount of substance, while extensive properties do.

Front

What is the significance of significant figures in measurements?

Back

They indicate the precision of a measurement and help in reporting results accurately.