Chemical Equations and Conservation of Mass

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

What is a chemical equation?

Back

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

Front

What are reactants in a chemical reaction?

Back

Reactants are the starting materials that undergo a chemical change.

Front

What are products in a chemical reaction?

Back

Products are the substances formed as a result of a chemical reaction.

Front

What does the arrow in a chemical equation signify?

Back

The arrow signifies 'yields' or 'results in', indicating the direction of the reaction.

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients to ensure the number of atoms for each element is the same on both sides.

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 mole in chemistry?

Back

A mole is a unit that measures the amount of substance, equivalent to 6.022 x 10^23 particles.

Front

What is the significance of subscripts in a chemical formula?

Back

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

Front

What is the difference between a molecule and an atom?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.