Unit 4 _ (Honors) Chemical Reactions TEST

Front

What is a chemical reaction?

Back

A process where substances undergo a transformation to create different substances.

Front

What happens to atoms during a chemical reaction?

Back

Atoms are rearranged to form new substances.

Front

Identify the type of reaction: AB + O2 → CO2 + H2O

Back

Combustion.

Front

Identify the type of reaction: 2H2 + O2 → 2H2O

Back

Synthesis.

Front

What is a physical change?

Back

A change that involves a substance altering its form or appearance without becoming a different substance.

Front

What is a decomposition reaction?

Back

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

Front

What is a double replacement reaction?

Back

A reaction where the anions and cations of two different compounds switch places, forming two new compounds.

Front

What is the law of conservation of mass?

Back

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