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Given the equation representing a reaction: F2g) + 2KCl(aq) → 2KF(aq) + Cl2g)Which type of ch

June 2023 Regents Chemistry Exam


38 Given the equation representing a reaction: F2g) + 2KCl(aq) → 2KF(aq) + Cl2g) Which type of chemical reaction is represented by the equation? (1) synthesis (2) decomposition (3) single replacement

(4) double replacement


Solution: In synthesis two or more molecules come together to form one bigger molecule: A+B--> AB

Decomposition is the opposite of synthesis: AB --> A+B

In a single replacement reaction, one element replaces another: A +BC --> B +AC

In a double replacement reaction partners get exchanged: AB +CD --> AD +CB

Answer: 3


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