Front

What is a precipitate?

Back

A solid that forms when two liquids are mixed.

Front

Which ink is most soluble?

Back

Yellow.

Front

What is required for paper chromatography to work?

Back

The dyes must have different solubilities in the solvent.

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be created nor destroyed; it can only be transformed or changed.

Front

Why does a reaction demonstrate the Law of Conservation of Mass?

Back

The number of atoms of each element are the same on both sides.

Front

What is chromatography?

Back

A technique used to separate mixtures based on the different rates at which components move through a medium.

Front

Define solubility.

Back

The ability of a substance to dissolve in a solvent.

Front

What is the role of a solvent in a solution?

Back

The solvent is the substance that dissolves the solute.

Front

What is a solution?

Back

A homogeneous mixture of two or more substances.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.