QQuestionChemistry
QuestionChemistry
When you added the ammonia and vinegar solutions together in Part II, did you form a new substance? How do you know? Explain using CER (Claim, Evidence, Reasoning).
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Answer
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Step 1:I'll solve this problem using the CER (Claim, Evidence, Reasoning) framework:
Claim: When ammonia and vinegar solutions are mixed, a chemical reaction occurs, forming a new substance.
Step 2:: Identify the Initial Substances
- Ammonia (NH₃): A base with the chemical formula $$NH_{3}
- Vinegar (CH₃COOH): An acid with the chemical formula CH_{3}COOH
Step 3:: Chemical Reaction Evidence
NH_{3} + CH_{3}COOH \rightarrow NH_{4}^{+} + CH_{3}COO^{-}
When these solutions are mixed, they undergo a neutralization reaction:
Step 4:: Reasoning
- New ions are created ($$NH_{4}^{+}$$ and $$CH_{3}COO^{-}$$)
Evidence supporting the formation of a new substance: - Chemical bonds are broken and reformed - The resulting solution has different chemical properties from the original reactants - pH changes during the reaction - New molecular structure is formed
Final Answer
Yes, a new substance is formed through a neutralization reaction between the base (ammonia) and acid (acetic acid in vinegar), creating ammonium acetate and demonstrating a chemical change.
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