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devochkaizada
@devochkaizada
July 2022
2
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Осуществите цепочки превращений
а)Sr - SrO - Sr(OH)2
б)P-P2O5-H3PO4
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InvisorTech
А) Sr¹ → SrO² → Sr(OH)₂
1) 2Sr + O₂ = 2SrO
2) SrO + H₂O = Sr(OH)₂
б) P¹ → P₂O₅² → H₃PO₄
1) 4P + 5O₂ = 2P₂O₅
2) P₂O₅ + 3H₂O = 2H₃PO₄
1 votes
Thanks 2
Анонимус1379002
A)Sr+O2=2SrO
SrO+H20=Sr(OH)2
б)4P+5O2=2P2O5
P2O5+3H2O=2H3PO4
0 votes
Thanks 0
InvisorTech
Где в первой реакции двойка перед стронцием?
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Answers & Comments
1) 2Sr + O₂ = 2SrO
2) SrO + H₂O = Sr(OH)₂
б) P¹ → P₂O₅² → H₃PO₄
1) 4P + 5O₂ = 2P₂O₅
2) P₂O₅ + 3H₂O = 2H₃PO₄
SrO+H20=Sr(OH)2
б)4P+5O2=2P2O5
P2O5+3H2O=2H3PO4