Exam 1 Review 2020

Front

What property of water allows it to dissolve ionic compounds like NaCl?

Back

Water molecules have partially charged ends that interact with ions.

Front

What is the pH range of all acids?

Back

All acids have a pH below 7.

Front

What is cohesion in the context of water?

Back

Cohesion is the property of water that allows it to stick to itself, leading to surface tension.

Front

What pH value indicates a strong acid?

Back

A strong acid would have a pH of around 2.

Front

What is a hypothesis in scientific research?

Back

A hypothesis is a proposed explanation that does not have to be correct, but must be testable, repeatable, and falsifiable.

Front

What is the definition of an ionic compound?

Back

An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.

Front

What is the significance of water's high specific heat?

Back

Water's high specific heat allows it to absorb a lot of heat without a significant change in temperature, which helps regulate climate.

Front

What is capillary action?

Back

Capillary action is the ability of water to flow in narrow spaces without the assistance of external forces, due to cohesion and adhesion.

Front

What does it mean for a hypothesis to be falsifiable?

Back

A hypothesis is falsifiable if it can be proven wrong through experimentation or observation.

Front

What is the difference between acids and bases in terms of pH?

Back

Acids have a pH below 7, while bases have a pH above 7.