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ID number:912468
 
Author:
Evaluation:
Published: 19.02.2021.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Uzrakstiet vienādojumus reakcijām, kurās var realizēt šādas parvērtības!
a) FeS2 → A- SO2→ B-SO3 → C-H2SO4 → CaSO4
4FeS2+11O2→ 8SO2+2Fe2O3
2SO2+O2→ 2SO3
SO3+H2O→ H2SO4
H2SO4+Ca(OH)2→ CaSO4+2H2O
b) N2 → A -NH3→ B-NO → C- NO2 → KNO3
N2+3H2-->2NH3
4NH3+5O2-->4NO+6H2O
2NO+O2-->2NO2
2NO2 + 2KOH (atšķ.) →H2O+KNO3 (nogulsnis) +KNO2
4NO2+2H2O+O2-->4HNO3
HNO3+KCl-->KNO3+HCl

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