Balancing chemical equations

Front

What is a balanced chemical equation?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.

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 coefficient in a chemical equation represent?

Back

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

Front

What is the Law of Conservation of Mass?

Back

It states that no matter can be created or destroyed in a chemical reaction.

Front

How do you determine if a chemical equation is balanced?

Back

Count the number of atoms of each element on both sides of the equation and ensure they are equal.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the chemical formula for water?

Back

H₂O, which indicates it is a compound made of hydrogen and oxygen.

Front

How many elements are in the compound C₆H₁₂O₆?

Back

There are 3 different elements: carbon (C), hydrogen (H), and oxygen (O).

Front

What is the purpose of balancing chemical equations?

Back

To ensure that the same number of each type of atom is present on both sides of the equation, reflecting the conservation of mass.

Front

What coefficient should be used to balance the equation N₂ + O₂ → _ NO?

Back

2, making the balanced equation N₂ + O₂ → 2 NO.