Chemical Indicators from Equations Practice

Front

What is a chemical reaction?

Back

A process where substances (reactants) undergo a transformation to form new substances (products), often indicated by observable changes.

Front

What are reactants in a chemical equation?

Back

The substances that are present at the start of a chemical reaction, located to the left of the arrow in a chemical equation.

Front

What are products in a chemical equation?

Back

The substances that are formed as a result of a chemical reaction, located to the right of the arrow in a chemical equation.

Front

What is an indicator of a chemical reaction?

Back

Observable changes such as color change, temperature change, gas production, or precipitate formation that suggest a chemical reaction has occurred.

Front

What does a color change indicate in a chemical reaction?

Back

It often signifies that a new substance has formed, indicating a chemical change.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction, typically when two aqueous solutions are mixed.

Front

How can you identify a precipitate in a chemical equation?

Back

Look for a solid product formed from two aqueous reactants, indicating a chemical reaction has occurred.

Front

What does the production of gas bubbles indicate?

Back

It suggests that a chemical reaction is taking place, often resulting in the formation of a new substance.

Front

What is the significance of heat or light production in a chemical reaction?

Back

It indicates that a chemical reaction is occurring, often associated with exothermic reactions.

Front

What does it mean if one substance dissolves in another?

Back

Dissolving is a physical change, not a chemical reaction, and does not indicate a new substance has formed.