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Questions and Answers
Why does the gas evolved extinguish a burning candle?
Why does the gas evolved extinguish a burning candle?
The carbon dioxide gas evolved during the reaction does not support combustion, which causes the candle to be extinguished.
Write the balanced chemical equation for the reaction described.
Write the balanced chemical equation for the reaction described.
2HCl + CaCO3 -> CaCl2 + CO2 + H2O
What gas is evolved during the reaction?
What gas is evolved during the reaction?
Carbon dioxide
Flashcards
Why CO2 extinguishes flame?
Why CO2 extinguishes flame?
The carbon dioxide (CO2) gas released doesn't support burning, so it puts out the candle's flame.
Balanced Equation for Acid + Carbonate
Balanced Equation for Acid + Carbonate
2HCl + CaCO3 → CaCl2 + CO2 + H2O represents hydrochloric acid reacting with calcium carbonate to produce calcium chloride, carbon dioxide, and water.
Gas Evolved
Gas Evolved
The gas produced in the reaction between an acid and a carbonate is carbon dioxide (CO2).
