Chemical Indicators from Equations Practice

Front

What is a chemical reaction?

Back

A chemical reaction is a process where substances (reactants) undergo a transformation to form new substances (products), often accompanied by observable changes such as color change, gas production, or temperature change.

Front

What is a precipitate?

Back

A precipitate is a new solid product that forms when two aqueous reactants are mixed and react with each other.

Front

How can you identify a precipitate in a chemical equation?

Back

Look for two aqueous reactants on the left side of the equation and a solid product on the right side.

Front

What are some indicators of a chemical reaction?

Back

Indicators include the production of heat or light, color change, gas bubbles, and odor change.

Front

Which observation does NOT indicate a chemical reaction?

Back

The dissolving of one substance in another does not necessarily indicate a chemical reaction.

Front

What is the difference between a chemical reaction and a chemical equation?

Back

Chemical reactions are the actual processes that occur in the lab, while chemical equations are symbolic representations of these processes.

Front

What does it mean when a chemical equation is balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides, indicating that mass is conserved during the reaction.

Front

What is the role of a chemical indicator?

Back

A chemical indicator is a substance that changes color or properties in response to a chemical change, often used to signal the presence of an acid or base.

Front

What is an example of a chemical change?

Back

Burning wood is an example of a chemical change, as it transforms the wood into ash, smoke, and gases.

Front

What is the significance of the arrow in a chemical equation?

Back

The arrow in a chemical equation indicates the direction of the reaction, showing the transformation of reactants into products.