Answer:
Gas Evolving Reactions
Explanation:
In this reaction setup, lime water is poured into one of the test tubes and sealed with a stopper. A small amount of hydrochloric acid is carefully poured into the remaining test tube. ... As a result of the acid-carbonate reaction, carbon dioxide is produced and the lime water turns milky.
CaCO
3(s)
+2HCl
(aq)
→2NaCl
(aq)
+H
2
O
(l)
+CO
2(g)
