Schemes of reactions are given. make an equation of chemical reactions and indicate their type.
Schemes of reactions are given. make an equation of chemical reactions and indicate their type. a) calcium oxide + carbon monoxide (4) – calcium carbonate. b) sulfuric acid + aluminum = aluminum sulfate + hydrogen. c) phosphoric acid + sodium hydroxide = sodium phosphate + water. d) nitric acid + water + nitric oxide (4) + oxygen.
We draw up the equations of chemical reactions and indicate their type.
a. Interaction of calcium oxide and carbon monoxide (4).
CaO + CO2 = CaCO3.
This reaction is called an addition reaction.
b. Interaction of aluminum and sulfuric acid.
2Al + 3H2SO4 = Al2 (SO4) 3 + 3H2.
This reaction is called a substitution reaction.
v. Reaction between sodium hydroxide and phosphoric acid.
3NaOH + H3PO4 = Na3PO4 + 6H2O.
This reaction is called an ion exchange reaction.
d. Decomposition of nitric acid.
4HNO3 = 4NO2 + O2 + 2H2O.
This reaction is called a decomposition reaction. Nitric acid decomposes in the light when heated.