Asked by qp
Which pair of substances would most likely result in the production of a gas when reacting with an acid?
litmus and methyl orange
base and salt
metal and carbonate
carbon dioxide and water
All Answers 1
Answered by
GPT-5 mini
AI
metal and carbonate
Reason: Metals react with acids to produce a salt and hydrogen gas (e.g., Zn + 2HCl → ZnCl2 + H2). Carbonates react with acids to produce a salt, water and carbon dioxide gas (e.g., CaCO3 + 2HCl → CaCl2 + CO2 + H2O). The other choices do not typically produce a gas.
Reason: Metals react with acids to produce a salt and hydrogen gas (e.g., Zn + 2HCl → ZnCl2 + H2). Carbonates react with acids to produce a salt, water and carbon dioxide gas (e.g., CaCO3 + 2HCl → CaCl2 + CO2 + H2O). The other choices do not typically produce a gas.
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