Arrange the coefficients, determine the type of reaction: a) P + S → P2S3 b) CuO + Al → Al2O3 + Cu

| August 15, 2021 | education

Arrange the coefficients, determine the type of reaction: a) P + S → P2S3 b) CuO + Al → Al2O3 + Cu c) HNO3 + CaCO3 → Ca (NO3) 2 + H2O + CO2 ↑ d) KClO3 → KCl + O2 ↑ e) KOH + H3PO4 → K3PO4 + H2O

In this task, it is necessary to arrange the coefficients and determine the types of chemical reactions.

a) 2P + 3S → P2S3.

Compound reaction. The result is phosphorus sulfide.

b) 3CuO + 2Al → Al2O3 + 3Cu.

Substitution reaction with the formation of copper and aluminum oxide.

c) HNO3 + CaCO3 → Ca (NO3) 2 + H2O + CO2 ↑.

Exchange reaction with the formation of calcium nitrate, water and the release of carbon dioxide.

d) 2KClO3 → 2KCl + 3O2 ↑.

Decomposition reaction. The result is potassium chloride and oxygen is released.

e) 3KOH + H3PO4 → K3PO4 + 3H2O.

Exchange reaction. The result is potassium phosphate and water.



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