Metal & Acid Reactions as Redox Reactions (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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Type of reaction when metals react with acids
Type of reaction when metals react with acids
Redox reaction
What happens to metal in metal-acid reactions?
What happens to metal in metal-acid reactions?
Oxidised (loses electrons)
What happens to H⁺ ions in metal-acid reactions?
What happens to H⁺ ions in metal-acid reactions?
Reduced (gains electrons)
Products of metal + acid reaction
Products of metal + acid reaction
Salt + hydrogen gas
What does form when oxidised in acid?
What does form when oxidised in acid?
(loses two electrons)
What do ions form when reduced?
What do ions form when reduced?
(hydrogen gas)
Role of metal in metal-acid redox reaction
Role of metal in metal-acid redox reaction
Reducing agent (donates electrons)
Role of acid in metal-acid redox reaction
Role of acid in metal-acid redox reaction
Oxidising agent (H⁺ accepts electrons)
What determines if metal reacts with acid?
What determines if metal reacts with acid?
Reactivity of metal & strength/concentration of acid
What are salts formed from?
What are salts formed from?
Metal cation (positive) + acid anion (negative)
Metals that react with weak or dilute acids
Metals that react with weak or dilute acids
Sodium, lithium, magnesium (highly reactive)
What acids do Cu, Hg, Ag need to react?
What acids do Cu, Hg, Ag need to react?
Strong and concentrated acids
Metal that won't react with acids
Metal that won't react with acids
Platinum (inert)
What predicts which metals react with acids?
What predicts which metals react with acids?
Reactivity Series