Balance Chemical Equations

Front

What is the first step in balancing a chemical equation?

Back

Identify the number of atoms of each element in the reactants and products.

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be gained or lost in a chemical reaction.

Front

How do you balance the equation: Fe + O₂ → Fe₂O₃?

Back

4Fe + 3O₂ → 2Fe₂O₃.

Front

What is the balanced form of the equation AlCl₃ + NaOH → Al(OH)₃ + NaCl?

Back

1,3,1,3.

Front

How many atoms of carbon are in C₆H₁₂O₆?

Back

6.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a chemical formula to indicate how many molecules or moles of that substance are involved.

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the same number of each type of atom appears on both sides of the equation.

Front

What is the balanced form of the equation CF₄ + Br₂ → CBr₄ + F₂?

Back

1,2,1,2.

Front

What is the significance of subscripts in a chemical formula?

Back

Subscripts indicate the number of atoms of each element in a molecule.

Front

What is the difference between a reactant and a product in a chemical reaction?

Back

Reactants are substances that start a chemical reaction, while products are substances formed as a result of the reaction.