8G Science HW#9: Chapter 1.1 and 1.2

The process in which substances undergo chemical changes that results in the formation of new substances is called _______.

• Chemical Reaction

• Chemical Formula

• Chemical Bond

• Chemical Symbol

The force that holds atoms together is called _______.

• Chemical Reaction

• Chemical Formula

• Chemical Bond

• Chemical Symbol

A substance that enters into a chemical reaction is called _____.

• Reactants

• Products

• Conservation of Mass

• Decomposition

A substance formed as a result of a chemical reaction is called _____.

• Reactants

• Products

• Conservation of Mass

• Decomposition

The principle stating that matter is not created or destroyed during a chemical reaction is called _____.

• Reactants

• Products

• Conservation of Mass

• Decomposition

A chemical reaction in which two or more simple substances combine to form a new or more complex substance is called _______.

• Synthesis

• Decomposition

• Replacement

A chemical reaction that breaks down compounds into simpler products is called _______.

• Synthesis

• Decomposition

• Replacement

A reaction in which one element replaces another in a compound or when two elements in different compounds trade places is called _______.

• Synthesis

• Decomposition

• Replacement

True or False:

Chemical reactions occur when chemical formula are formed or broken.

• True

• False

True or False:

A chemical equation uses symbols for the reactants and products of a chemical reaction.

• True

• False