Balancing Equations Progress Check

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, following the law of conservation of mass.

Front

What does a coefficient in a chemical equation represent?

Back

A coefficient indicates the number of molecules or moles of a substance involved in the reaction.

Front

What is a subscript in a chemical formula?

Back

A subscript is a small number written after an element symbol that indicates the number of atoms of that element in a molecule.

Front

How do you determine the number of atoms in a compound?

Back

Count the number of atoms of each element, which is indicated by the element symbol and its subscript in the chemical formula.

Front

What is the purpose of balancing chemical equations?

Back

Balancing chemical equations ensures that the same number of each type of atom is present on both sides of the equation, reflecting the conservation of mass.

Front

What is the product side of a chemical equation?

Back

The product side is the right side of the equation, where the substances formed from the reaction are listed.

Front

How many hydrogen atoms are in H2O?

Back

There are 2 hydrogen atoms in one molecule of water (H2O).

Front

What is the yield sign in a chemical equation?

Back

The yield sign (→) separates the reactants from the products in a chemical equation.

Front

What does it mean if a chemical equation is already balanced?

Back

It means that the number of atoms of each element is the same on both sides of the equation, and no further adjustments are needed.

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.