Answer:
PbCO₃ + 2HNO₃ –> Pb(NO₃)₂ + CO₂ + H₂O
Explanation:
From the question given above:
Solid lead (II) carbonate reacts with a dilute solution of nitric acid (HNO₃) to give a solution of lead (II) nitrate,
carbon dioxide and water.
The above can be represented in the equation form as follow:
PbCO₃ + HNO₃ –> Pb(NO₃)₂ + CO₂ + H₂O
Finally, we shall balance the equation as follow:
PbCO₃ + HNO₃ –> Pb(NO₃)₂ + CO₂ + H₂O
There are 2 atoms of H on the right side and 1 atom on the left side. It can be balance by putting 2 in front of HNO₃ as shown below:
PbCO₃ + 2HNO₃ –> Pb(NO₃)₂ + CO₂ + H₂O
Now, the equation is balanced.
Answer: Its esterification reaction.
when organic acid react with alcohol it forms ester and water. reaction is known as esterification reaction.
CH3COOH + C2H5OH → CH3COOC2H5 + H2O
ethanoic acid + ethanol → ethyl acetate + water
this reaction takes place in the presence of acid catalyst ( dil H2SO4).
in this reaction oxygen of ethanol with lone pair act as nucleophile and carbonyl carbon of acetic acid act as electrophile.. so its nucleophilic substitution reaction of -COOH group.
Explanation:
Gamma rays consist of pure energy. Beta particles consist of one electron that is released at high speeds from an unstable nucleus and an alpha particle is a helium nucleus.
We know that Gamma rays consist of pure energy because, during Gamma decay, the atomic and mass numbers remain unchanged. Therefore, only energy is emitted.
Gamma rays are weakly ionising, however, they are strongly penetrating and thick concrete or a few centimetres of aluminium is needed to stop them.
Answer:
buffer action
Explanation:
the property of the solution to resist the changes in its pH value on the addition of small amounts of strong acid or base is known as buffer action
