Extended LSAE 9.5

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, meaning that the different components are not visibly distinguishable. An example is air.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the components are not uniformly distributed and can be easily distinguished. An example is a bowl of cereal.

Front

What is surface tension?

Back

Surface tension is the property of a liquid that allows it to resist an external force, due to the cohesive nature of its molecules. It causes water to form beads on surfaces like wax.

Front

What is adhesion?

Back

Adhesion is the attraction between different substances, such as water molecules sticking to glass.

Front

What is cohesion?

Back

Cohesion is the attraction between molecules of the same substance, such as water molecules attracting to other water molecules.

Front

What happens when an acid is added to blue litmus paper?

Back

The blue litmus paper turns red, indicating the presence of an acid.

Front

What happens when a base is added to red litmus paper?

Back

The red litmus paper turns blue, indicating the presence of a base.

Front

What are strong acids known for?

Back

Strong acids are known for their ability to conduct electricity and change the color of litmus paper.

Front

What are strong bases known for?

Back

Strong bases are known for their bitter taste, ability to conduct electricity, and changing the color of litmus paper.

Front

What is the pH scale?

Back

The pH scale is a measure of how acidic or basic a solution is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.