Balancing Chemical Equations

Front

What does the Law of Conservation of Mass state?

Back

The mass of all reactants must equal the mass of all products in a chemical reaction.

Tags

NGSS.MS-PS1-5

Front

What are the substances that go into a chemical reaction called?

Back

Reactants.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Front

What are the substances that are produced in a chemical reaction called?

Back

Products.

Front

What information can be determined from a chemical formula?

Back

The number of atoms of each element in the compound.

Tags

NGSS.MS-PS1-1

Front

In the equation 2H₂ + O₂ → 2H₂O, what are the reactants?

Back

2H₂ and O₂.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Front

In the equation 2H₂ + O₂ → 2H₂O, what are the products?

Back

2H₂O.

Tags

NGSS.MS-PS1-5

Front

How many total atoms are in the neurotransmitter serotonin (C₁₀H₁₂N₂O)?

Back

25 atoms.

Tags

NGSS.MS-PS1-1

Front

What is a chemical equation?

Back

A representation of a chemical reaction using symbols and formulas.

Front

What does it mean to balance a chemical equation?

Back

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

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Front

What is the significance of coefficients in a chemical equation?

Back

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