Energy in Reactions and Acids/Bases

Front

What is the pH range of bases?

Back

More than 7.

Front

What indicates that a chemical reaction has occurred?

Back

Formation of rust on a hammer left outside.

Front

What does a pH of 5.6 indicate about rainwater?

Back

The rainwater is a weak acid.

Front

Is HCl an acid or a base?

Back

Acid.

Front

What is true about the relationship between pH and acid strength?

Back

The lower the pH, the stronger the acid.

Front

What is the pH of neutral solutions?

Back

7.

Front

What happens to the pH of a solution when an acid is added?

Back

The pH decreases.

Front

What is a characteristic of strong acids?

Back

They completely dissociate in water.

Front

What is a characteristic of weak acids?

Back

They partially dissociate in water.

Front

What is the effect of adding a base to an acid?

Back

It neutralizes the acid.