Question

when coach kwan notices that a player is getting tired, she takes out the tired player and substitutes a fresh player. which type of chemical reaction does this best model? replacement decomposition synthesis oxidation

Explanation:

• Replacement reaction: One element or compound replaces another in a reaction. Here, a fresh player replaces a tired one, similar to how in a chemical replacement reaction one entity takes the place of another.
• Decomposition: A single compound breaks down into simpler substances. This is not the case here as there is no breakdown but a substitution.
• Synthesis: Two or more substances combine to form a new compound. Not relevant as it's a substitution, not a combination.
• Oxidation: Involves the loss of electrons or addition of oxygen. Not related to the substitution described.

Answer:

replacement