Chemical Reactions Test

Front

What is a chemical reaction?

Back

A process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

Front

What is the dot diagram for oxygen (O)?

Back

The dot diagram for oxygen shows 6 valence electrons arranged in two pairs and two single electrons.

Front

What type of reaction is represented by the equation AB -> A + B?

Back

Decomposition reaction.

Front

What does the Law of Conservation of Mass state?

Back

It states that matter cannot be created or destroyed in a chemical reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed before a chemical formula to indicate the number of molecules or moles of that substance.

Front

What is a decomposition reaction?

Back

A type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a synthesis reaction?

Back

A type of chemical reaction where two or more reactants combine to form a single product.

Front

What is a single replacement reaction?

Back

A chemical reaction where one element replaces another element in a compound.

Front

What is a double replacement reaction?

Back

A chemical reaction where two compounds exchange ions or bonds to form two new compounds.

Front

What is combustion?

Back

A chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat.