Chemical Indicators from Equations Practice

Front

What is an indicator of a chemical reaction?

Back

An indicator of a chemical reaction is a sign that a chemical change has occurred, such as the production of heat or light, a color change, the production of gas bubbles, or an odor change.

Front

Which of the following is NOT an indicator of a chemical reaction?

Back

The dissolving of one substance in another.

Front

What do you look for in a chemical equation to determine if there is a precipitate?

Back

You look for reactants that cannot be solid and at least one product that has to be a solid.

Front

What does the term 'aqueous' mean?

Back

Aqueous means dissolved in water.

Front

What is a precipitate?

Back

A precipitate is a new solid product formed from two aqueous reactants.

Front

What is a common sign of a chemical reaction?

Back

Common signs include color change, temperature change, gas production, and formation of a precipitate.

Front

What does it mean if a reaction produces gas bubbles?

Back

It indicates that a chemical reaction has occurred, often resulting in a new substance.

Front

How can you identify a chemical change?

Back

By observing indicators such as color change, temperature change, gas production, or the formation of a precipitate.

Front

What is the significance of a color change in a reaction?

Back

A color change often indicates that a new substance has formed, signaling a chemical reaction.

Front

What does it mean if two liquids react to form a solid?

Back

It indicates that a precipitate has formed, which is a sign of a chemical reaction.