Mixtures and Dissolving

Front

What is a mixture?

Back

A mixture is made up of two or more elements and/or compounds that are not chemically combined together.

Front

How can a mixture be separated?

Back

A mixture can be separated into its constituent elements and/or compounds by physical methods.

Front

Are the chemical properties of a mixture the same or different from its components?

Back

The chemical properties of a mixture are the same as those of its components.

Front

Is energy involved when a mixture is formed?

Back

No chemical reaction takes place when a mixture is formed, usually with little or no energy change.

Front

In what proportions can the components of a mixture be mixed?

Back

The components of a mixture can be mixed in any proportion.

Front

What factors affect the rate of dissolving?

Back

Size of solute particles, Temperature of solvent, Rate of stirring.

Front

How does the temperature of the solvent affect dissolving?

Back

The higher the temperature of the solvent, the faster the solute dissolves.

Front

How does the size of solute particles affect dissolving?

Back

The smaller the solute particles, the faster the solute dissolves. Small particles have a larger surface area in contact with the solvent.

Front

How does the rate of stirring affect dissolving?

Back

The faster the rate at which we stir the mixture, the faster the solute dissolves.