CIA # 2 Study Guide

Front

Between what temperatures are the substances depicted in the heating curve in only the liquid state?

Back

30 to 50

Front

Which of the following pH values is the MOST acidic?

Back

5.0

Front

A substance that changes color when mixed with an acid or base is a(n) ___

Back

indicator

Front

At which points are phase changes occurring?

Back

Points 2 and 4

Front

Which of the following best describes a chemical formula?

Back

the number of atoms of each type of element present in a molecule

Front

What is the definition of a heating curve?

Back

A graph that shows the change in temperature of a substance as it is heated over time.

Front

What does pH measure?

Back

The acidity or basicity of a solution.

Front

What is an indicator in chemistry?

Back

A substance that changes color in response to a change in pH.

Front

What are phase changes?

Back

Transitions between solid, liquid, and gas states of matter.

Front

What is the significance of points on a heating curve?

Back

They indicate temperature changes and phase transitions.