Chapter 19 chemical reactions

Front

What is a chemical reaction?

Back

A change in which one or more substances are converted into new substances.

Front

What does the term 'release' mean in an academic context?

Back

To set free from confinement or restraint.

Front

What are reactants in a chemical reaction?

Back

The substances that react in a chemical reaction.

Front

What is a decomposition reaction?

Back

A reaction in which one substance breaks down into two or more substances.

Front

What is a displacement reaction?

Back

A reaction in which one element replaces another element in a compound.

Front

What is a synthesis reaction?

Back

A reaction in which two or more substances combine to form another substance.

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed.

Front

What is an exothermic reaction?

Back

A reaction that releases energy in the form of heat or light.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings.

Front

What are products in a chemical reaction?

Back

The substances that are produced in a chemical reaction.