ПОООМИИТЕ 3 НОМЕРА ДАЮ 30 БАЛЛОВ СРООООЧНО. Created by Karinago. himiya-ru

ПОООМИИТЕ 3 НОМЕРА ДАЮ 30 БАЛЛОВ СРООООЧНО...

September 2021 1 5 Report

ПОООМИИТЕ
3 НОМЕРА
ДАЮ 30 БАЛЛОВ
СРООООЧНО

Answers & Comments

фтвфкещт20 №282
а)Na2O+2HCl=NaCl+H2O
Cr2O3+6HNO3=2Cr(NO3)3+3H2O
Al2O3+3H2SO4=Al2(SO4)3+3H2O

б) 2NaOH+CO2=Na2CO3+H2O
2KOH+Cr2O3=2KCrO2+H2O
3Ba(OH)2+P2O5=Ba3(PO4)2+3H2O

№283
а)Ca(OH)2+2HCl=CaCl2+2H2O
Ba(OH)2+H2SO4=BaSO4↓+2H2O
3NaOH+H3PO4=Na3PO4+3H2O

б) 2LiOH+Cu(NO3)2=Cu(OH)2↓+2LiNO3
6KOH+Cr2(SO4)3=2Cr(OH)3↓+3K2SO4
3NaOH+FeCl3=Fe(OH)3↓+3NaCl

№284
а)2NaF+H2SO4=Na2SO4+2HF
2BiCl3+3H2S=Bi2S3↓+6HCl
CaCO3+2HCl=CaCl2+CO2↑+H2O

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