Checkpoint Review

Front

What is saturation in a solution?

Back

Saturation occurs when a solution can no longer dissolve additional solute, meaning it has reached its maximum concentration.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means and is made up of only one type of atom.

Front

What is the average speed formula?

Back

Average speed = Total distance / Total time.

Front

What is the significance of the number of atoms in a substance?

Back

The number of atoms in a substance determines its properties, reactivity, and how it interacts with other substances.

Front

What happens to the solubility of sugar in water as temperature increases?

Back

Generally, the solubility of sugar in water increases as the temperature increases.

Front

What is the definition of a solution?

Back

A solution is a homogeneous mixture composed of two or more substances, where one substance (the solute) is dissolved in another (the solvent).

Front

What is the role of stirring in dissolving a solute?

Back

Stirring helps to distribute the solute particles throughout the solvent, increasing the rate of dissolution.

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance that is dissolved in a solution, while a solvent is the substance that does the dissolving.

Front

What is the formula for calculating average speed in km/min?

Back

Average speed (km/min) = Total distance (km) / Total time (min).