Chemical Equations

Front

What is a chemical equation?

Back

A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

Front

What do coefficients in a chemical equation represent?

Back

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

Front

What do subscripts in a chemical formula indicate?

Back

Subscripts indicate the number of atoms of an element in a molecule.

Front

How do you determine the number of atoms in a compound?

Back

Count the number of atoms for each element, using coefficients and subscripts.

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.

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.

Front

Why is it important to balance chemical equations?

Back

Balancing chemical equations ensures that the law of conservation of mass is upheld and accurately represents the reaction.

Front

What is the difference between a reactant and a product?

Back

Reactants are substances that undergo a chemical change, while products are the substances formed as a result of the reaction.

Front

How many total atoms are in the compound 4NH3?

Back

There are 16 total atoms in 4NH3 (4 Nitrogen and 12 Hydrogen).

Front

What happens if you change the subscripts in a chemical formula?

Back

Changing the subscripts alters the identity of the substance, creating a different compound.