Signs of a Chemical Reaction

Front

What is a precipitate?

Back

A solid that forms when one liquid is poured into another liquid during a chemical reaction.

Front

What is one sign that a chemical reaction has occurred?

Back

Bubbles are produced.

Front

What are the signs of a chemical reaction?

Back

Evidence includes the formation of a precipitate, color change, and temperature change.

Front

What indicates a new substance has formed when mixing two clear liquids?

Back

A yellow solid forms and settles to the bottom of the beaker.

Front

Which of the following is NOT an indication of a chemical change?

Back

Shape change.

Front

What is a chemical reaction?

Back

A process where reactants are transformed into products, often accompanied by observable signs.

Front

What does color change indicate in a chemical reaction?

Back

It suggests that a new substance may have formed.

Front

What is the significance of temperature change in a chemical reaction?

Back

It indicates that energy is being absorbed or released, suggesting a reaction is occurring.

Front

What does the formation of gas bubbles signify?

Back

It is a sign that a chemical reaction is taking place.

Front

What is the role of reactants in a chemical reaction?

Back

Reactants are the starting substances that undergo change to form products.