Parts of a Chemical Reaction

Front

What does the Law of Conservation of Mass state?

Back

The Law of Conservation of Mass states that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants.

Front

What are the substances on the left side of a chemical equation called?

Back

The substances on the left side of a chemical equation are called reactants.

Front

What are the substances on the right side of a chemical equation called?

Back

The substances on the right side of a chemical equation are called products.

Front

What is the correct chemical equation for the combustion of carbon?

Back

3C + 2O₂ → 3CO₂

Front

Which of the following is NOT an element: H₂O, H₂, O₂, Au?

Back

H₂O is NOT an element; it is a compound.

Front

Define a chemical reaction.

Back

A chemical reaction is a process in which substances (reactants) are transformed into different substances (products) through the breaking and forming of chemical bonds.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction.

Front

What is a product in a chemical reaction?

Back

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

Front

What is the significance of balancing a chemical equation?

Back

Balancing a chemical equation ensures that the Law of Conservation of Mass is obeyed, meaning the number of atoms of each element is the same on both sides of the equation.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance that cannot be broken down into simpler substances, while a compound is a substance formed when two or more elements chemically bond together.