Explain add appropriate state symbols to chemical equations from the Chemistry specification in the context of State symbols.

Add appropriate state symbols to chemical equations from the Chemistry specification. In State symbols, the response should use the correct terms and keep the explanation tied to How bonding and structure are related to the properties of substances. For full credit, state the key idea, then explain the link between the bonding, structure, particle model, or property named in the question.

This answer works because it directly addresses the approved AQA objective and keeps the response inside State symbols. It avoids a common weak answer: describing a related Chemistry idea without making the required distinction clear. When marking, look for the named concept, a correct relationship, and a sentence that connects the explanation back to the question wording.