Balancing Equations

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.

Tags

NGSS.MS-PS1-5

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

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. If they are equal, the equation is balanced.

Tags

NGSS.MS-PS1-5

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 is the law of conservation of mass?

Back

The law states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Tags

NGSS.MS-PS1-5

Front

Balance the equation: __C + __O₂ --> __CO₂.

Back

1, 1, 1

Tags

NGSS.MS-PS1-5

Front

What is the balanced form of the equation: __H₂ + __O₂ --> __H₂O?

Back

2, 1, 2

Tags

NGSS.MS-PS1-5

Front

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

Back

It means that the number of atoms for each element is the same on both sides of the equation without needing to adjust coefficients.

Tags

NGSS.MS-PS1-5

Front

Balance the equation: __Fe + __O₂ --> __Fe₂O₃.

Back

4, 3, 2

Tags

NGSS.MS-PS1-5

Front

What is the balanced form of the equation: __NH₃ + __O₂ --> __NO + __H₂O?

Back

4, 3, 2, 6

Tags

NGSS.MS-PS1-5