Test 4 Review

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 a synthesis reaction?

Back

A type of chemical reaction where two or more reactants combine to form a single product, represented as A + B -> AB.

Front

What is a decomposition reaction?

Back

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

Front

What is evidence of a chemical reaction?

Back

Indicators include formation of a precipitate, production of gas, color change, temperature change, and sudden release of light.

Front

What does (l) represent in a chemical equation?

Back

It indicates that the substance is in a liquid state.

Front

What does (aq) represent in a chemical equation?

Back

It indicates that the substance is dissolved in water.

Front

What is the general equation for a decomposition reaction?

Back

AB -> A + B.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.

Front

What is a precipitate?

Back

A solid that forms and settles out of a liquid mixture during a chemical reaction.

Front

What is the law of conservation of mass?

Back

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