Density, Acids/Bases, Chemical Reactions

Front

What is the BEST definition of a chemical reaction?

Back

A change in matter that produces one or more NEW substances.

Front

What are the properties of acids?

Back

Sour taste, corrosive, change litmus from blue to red.

Front

Why do liquids form different layers when mixed?

Back

They have different densities.

Front

What is a common property of bases?

Back

Feels slippery.

Front

If an object has a density of 3.6 g/mL, will it sink or float in water?

Back

It will sink.

Front

What is density?

Back

Density is the mass of an object divided by its volume.

Front

How do you calculate density?

Back

Density = Mass / Volume.

Front

What happens to the density of an object if its mass increases while its volume remains the same?

Back

The density increases.

Front

What is the pH scale used for?

Back

The pH scale measures how acidic or basic a solution is.

Front

What is a neutral pH value?

Back

A neutral pH value is 7.