Balancing Equations

Front

What does the Law of Conservation of Mass state?

Back

Matter cannot be gained or lost in a chemical reaction.

Front

Fill in the blanks with coefficient: PCl₅ + _ H₂O → _ HCl + H₃PO₄

Back

4, 5

Front

Which side of a chemical equation is the reactant side?

Back

Left (before the arrow)

Front

What does the arrow in a chemical equation represent? H₂ + O → H₂O

Back

Produces

Front

How many hydrogen atoms are in 3(NH₄)₂CrO₄?

Back

24

Front

What is a chemical equation?

Back

A symbolic representation of a chemical reaction showing reactants and products.

Front

What are reactants in a chemical equation?

Back

Substances that undergo a chemical change during a reaction.

Front

What are products in a chemical equation?

Back

Substances formed as a result of a chemical reaction.

Front

What is a coefficient in a chemical equation?

Back

A number placed in front of a compound to indicate how many molecules are involved.

Front

What is the purpose of balancing a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.