1) 2Na + 2H2O = 2NaOH + H2 (when sodium interacts with water, sodium hydroxide and hydrogen are formed);
2) 2NaOH + H2CO3 = Na2CO3 + 2H2O (when sodium hydroxide interacts with carbonic acid, sodium carbonate and water are formed);
3) Na2CO3 + 2HCl = 2NaCl + H2CO3 (when sodium carbonate interacts with hydrochloric acid, sodium chloride and carbonic acid are formed);
4) NaCl + AgNO3 = AgCl + NaNO3 (when sodium chloride interacts with silver nitrate, silver chloride and sodium nitrate are formed).
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.