Balancing Reactions

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 are reactants in a chemical reaction?

Back

Reactants are the substances that undergo a chemical change in a reaction, found on the left side of a chemical equation.

Front

What are products in a chemical reaction?

Back

Products are the substances formed as a result of a chemical reaction, found on the right side of a chemical equation.

Front

What does it mean to balance a chemical equation?

Back

Balancing a chemical equation means adjusting the coefficients of the reactants and products to ensure that the number of atoms for each element is the same on both sides.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; it is conserved.

Front

How do you determine the coefficients in a balanced equation?

Back

Coefficients are determined by adjusting the numbers in front of the compounds to ensure that the number of atoms of each element is equal on both sides.

Front

What is the coefficient of O2 in the balanced equation NH3 + O2 -> HNO3 + H2O?

Back

The coefficient of O2 is 2 when the equation is balanced.

Front

Is the equation 2CH3OH + 3O2 -> 2CO2 + 4H2O balanced?

Back

Yes, the equation is balanced.

Front

What is the left part of a chemical equation called?

Back

The left part of a chemical equation is called the reactants.

Front

How many Sodium (Na) atoms are in 6NaCl?

Back

There are 6 Sodium (Na) atoms in 6NaCl.