Based on the user reviews of the Chemistry Trivia app, here are three cons and pros, each limited to 15 words: **Cons:** 1. "Too many easy questions, not challenging enough for experienced chemistry students." 2. "App crashes frequently, causing loss of progress and frustrating gameplay." 3. "Limited number of questions, gets repetitive and doesn't provide adequate practice." **Pros:** 1. "Engaging and interactive way to learn chemistry concepts, making them more enjoyable." 2. "Well-organized questions by topic and difficulty level, helping users focus on strengths." 3. " Nice visualization of chemical reactions and formulas, aiding understanding and retention."