metal compound A reacts with dilute hydrochloric acid to produce effervescence the gas evolved extinguishes a burning candle write balanced chemical equation for the reaction if one of the compounds formed in calcium chloride?
Answers
Answer:
Explanation:
Answer: When calcium carbonate reacts with hydrochloric acid, it produces carbon dioxide gas with effervescence. Carbon dioxide used as fire extinguisher. Hence, it extinguishes a burning candle. Therefore, the metal compound A is calcium carbo Correct option is
A
CaCO
3
(s) + 2HCl(aq) → CaCl
2
(s) + CO
2
(g) + H
2
O(l)
When a metal compound A on reacting with hydrochloric acid shows effervescence which shows the evolution of carbon dioxide gas and it is confirmed by putting off the candle flame.
So metal compound A is a carbonate of calcium which on reacting with HCl gives calcium chloride and carbon dioxide as gas along with water.
CaCO
3
(s) + 2HCl(aq) → CaCl
2
(s) + CO
2
(g) + H
2
O(l)
Answer:
Answer:
The gas thus formed is an effervescent carbon dioxide gas when calcium carbonate reacts with hydrochloric acid. The carbon dioxide gas also acts as an extinguisher for fires. Hence, the burning candle is extinguished. The metal compound A, therefore, constitutes calcium carbonate.
Hence metal compound A is CaCO3
The Gas evolved is CO2
Equation
The balanced equation of the reaction is
CaCO3 + 2HCl → CaCl2 + CO2 + H2O