Question

The gas released when \[NaHC{O_3}\] reacts with \[HN{O_3}\] will:
A.turn lime water milky
B.release effervescence
C.both A and B
D.burns with a pop sound

Answer 1

Hint: A chemical reaction is marked by the reaction of two or more compounds and generating a certain product. Most chemical reactions release effervescence or a gas.

Complete step-by-step answer:
We know that when \[NaHC{O_3}\] reacts with \[HN{O_3}\], carbon dioxide gas is released. We can give the reaction of this as follows:
\[{\text{NaHC}}{{\text{O}}_{\text{3}}} + {\text{HN}}{{\text{O}}_{\text{3}}} \to {\text{NaN}}{{\text{O}}_{\text{3}}} + {{\text{H}}_{\text{2}}}{\text{O}} + {\text{C}}{{\text{O}}_{\text{2}}}\]
We know very well that the gas carbon dioxide turns lime water milky. Carbon oxide turns lime water milky due to the formation of calcium carbonate. We can write this reaction as follows.
\[{\text{Ca}}{\left( {{\text{OH}}} \right)_{\text{2}}} + {\text{C}}{{\text{O}}_{\text{2}}} \to {\text{CaC}}{{\text{O}}_{\text{3}}} \downarrow + {{\text{H}}_{\text{2}}}{\text{O}}\]

Additional information:
Lime is represented by the chemical formula \[\left( {{\text{CaO}}} \right)\]. It is also called as quick lime. The density of this compound is \[{\text{3}}{\text{.34}}\,{\text{g/c}}{{\text{m}}^{\text{3}}}\] and has a molar mass of \[{\text{56}}{\text{.0774}}\,{\text{g/c}}{{\text{m}}^3}\]. It is soluble in water and in glycerol. Quicklime can be prepared by thermally decomposing limestone or seashells having calcium carbonate in it. Burnt lime is prepared by a method called calcination. Calcination is done by decomposing thermally the reactants at high temperature, but below its melting point. Calcination of calcium carbonate needs a temperature range between \[{{1070^\circ C}}\]to \[{{1270^\circ C}}\].
Lime water is represented by the chemical formula \[{\text{Ca}}{\left( {{\text{OH}}} \right)_{\text{2}}}\], which is known as calcium hydroxide. Calcium oxide when mixed with water produces lime water, that is calcium hydroxide. The reaction is an exothermic reaction and forms steam vigorously.

Therefore, out of the given four options, A is the correct option. B, C and D are incorrect options.

Note: Lime water many health benefits. One major health benefit of lime water is it mimics the hydrochloric acid present in our stomach helping prevent constipation, and also diarrhea.