PMA 2 Review

Front

What are weak acids?

Back

Weak acids are acids that do not completely dissociate in solution, meaning they only partially ionize. Examples include vinegar and fruit juice.

Front

What is a proton?

Back

A proton is a positively charged subatomic particle found in the nucleus of an atom. It determines the atomic number of an element.

Front

What is a control group in an experiment?

Back

A control group is a standard of comparison in an experiment. It is the group that does not receive the experimental treatment, allowing for a baseline to measure the effects of the variable.

Front

What is a test variable?

Back

A test variable, also known as an independent variable, is the factor that is changed or manipulated in an experiment to observe its effects.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniformly distributed, and different parts can be easily distinguished. An example is a salad.

Front

What is an example of a strong acid?

Back

An example of a strong acid is hydrochloric acid (HCl), which completely dissociates in water.

Front

What is the boiling point of water?

Back

The boiling point of water is 100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure.

Front

What is the difference between a proton and a neutron?

Back

A proton is positively charged, while a neutron has no charge. Both are found in the nucleus of an atom.

Front

What is an example of a homogeneous mixture?

Back

An example of a homogeneous mixture is saltwater, where the salt is completely dissolved and evenly distributed.

Front

What does it mean for a substance to dissociate in solution?

Back

Dissociation in solution refers to the process where a compound breaks apart into its individual ions or molecules when dissolved in a solvent.