Just Balancing Equations

Front

What is the law of conservation of mass?

Back

Mass of reactants = mass of products.

Tags

NGSS.MS-PS1-5

Front

In the chemical equation CH₄ + 2 O₂ → CO₂ + 2 H₂O, what is CH₄?

Back

Reactant.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Front

Balance the equation: __P₄ + __O₂ → __P₂O₃

Back

1, 3, 2.

Tags

NGSS.MS-PS1-5

Front

How many nitrogen atoms are in NH₃?

Back

1.

Tags

NGSS.MS-PS1-1

Front

Does the equation Na + F → NaF follow the law of conservation of mass?

Back

Yes.

Tags

NGSS.MS-PS1-5

Front

What is a reactant in a chemical equation?

Back

A substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical equation?

Back

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

Front

What does it mean to balance a chemical equation?

Back

To ensure that the number of atoms for each element is the same on both sides of the equation.

Tags

NGSS.MS-PS1-5

Front

What is the significance of coefficients in a balanced equation?

Back

Coefficients indicate the number of molecules or moles of a substance involved in the reaction.

Tags

NGSS.HS-PS1-7

Front

What is the first step in balancing a chemical equation?

Back

Write the unbalanced equation.