Chemical Equations

Front

What is an Atomic Number?

Back

The Atomic Number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What does a subscript indicate in a chemical formula?

Back

A subscript indicates the number of atoms of an element in a molecule.

Front

What does a coefficient indicate in a chemical equation?

Back

A coefficient indicates the number of molecules or moles of a substance involved in a chemical reaction.

Front

What are reactants in a chemical equation?

Back

Reactants are the starting substances that undergo a chemical change in a reaction.

Front

What charge do electrons carry?

Back

Electrons carry a negative charge.

Front

What is a chemical equation?

Back

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

Front

What is the difference between a reactant and a product?

Back

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

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 equal numbers of each type of atom on both sides of the equation.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.