Balancing Chemical Equations Vocabulary

Front

_________________________ are the starting substances in a chemical reaction.

Back

reactants

Front

___________________________ are the new substances that are formed during a chemical reaction.

Back

products

Front

The large numbers in front of a chemical formula that are used to balance a chemical equation are called

Back

coefficients

Front

The number and type of atoms on each side of a chemical equation must be

Back

equal

Front

The Law of ____________________________ states that atoms can neither be created nor destroyed in a chemical reaction.

Back

Conservation of Matter

Front

What are numbers that are in a formula and follow the element symbol, and are never changed to balance a chemical equation?

Back

subscripts

Front

How many carbon atoms are in the following formula? 2C₆H₁₂O₆

Back

12

Front

How many atoms of oxygen are in the following formula? Al(NO₃)₃

Back

9

Front

How many hydrogen atoms are on the product side of the balanced chemical equation? 2C₂H₆ + 7O₂ --> 4CO₂ + 6H₂O

Back

12

Front

How many oxygen atoms are on the reactant side of the balanced chemical equation? 2C₂H₆ + 7O₂ --> 4CO₂ + 6H₂O

Back

14