Balancing 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 a chemical reaction.

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 law of conservation of mass?

Back

The law states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.

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 purpose of balancing chemical equations?

Back

Balancing chemical equations ensures that the same amount of each element is present before and after the reaction, reflecting the conservation of mass.

Tags

NGSS.MS-PS1-5

Front

What is a reactant in a chemical equation?

Back

A reactant is a substance that undergoes a chemical change during a reaction.

Front

What is a product in a chemical equation?

Back

A product is a substance that is formed as a result of a chemical reaction.

Tags

NGSS.MS-PS1-2

Front

Balance the equation: _Na + _Cl₂ → _NaCl

Back

2, 1, 2

Tags

NGSS.MS-PS1-5

Front

What does it mean if an 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 any changes.

Tags

NGSS.MS-PS1-5