Synthesis and Decomposition Reactions

Mr. Anderson explains synthesis and decomposition reactions in Chemistry Essentials video 29. He clarifies that rusting is a synthesis reaction, while the breakdown of water is a decomposition reaction. Synthesis involves combining atoms or molecules to form a new compound, while decomposition involves breaking down a compound into simpler substances. Examples include magnesium oxide formation and carbonation for synthesis, and sodium azide breakdown and hydrogen peroxide decomposition for decomposition. The video concludes with a discussion on stoichiometry and its application in these reactions.

Explain how the carbonation of water is an example of a synthesis reaction.

What role does sodium azide play in airbags, and what happens during its decomposition?