Chemical Reactions

Front

Which of the following involves a chemical change? Cutting bread, Water boiling in a kettle, New skin forming over a cut, Breaking glass

Back

New skin forming over a cut

Front

What can sometimes be difficult to tell during a chemical reaction?

Back

If a new substance is formed

Front

What is the first sign of a chemical reaction listed in the text?

Back

Gas given off

Front

Which of the following is NOT a sign of a chemical reaction? Solid formation, Color change, Temperature change, Melting

Back

Melting

Front

What tool is used to measure a temperature change in a chemical reaction?

Back

Thermometer

Front

What is the main topic of the section titled "Solid is Formed"?

Back

Precipitation

Front

Precipitation in chemistry

Back

Formation of a solid

Front

What is it called when the temperature is taken in and you can feel it get colder?

Back

Endothermic

Front

What is the term for reactions that give out light but not heat?

Back

Chemiluminescence

Front

What is another sign of a chemical reaction besides light?

Back

Sound