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Tomika13
@Tomika13
July 2022
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50 БАЛЛОВ!!!!!! СРООООЧНООО!!!!!!!!!!ПОЖААЛУЙСТА
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x5ym1na2
Номер 4
a)
4Al + 3O2 = 2Al2O3
Al2O3 + HCl = AlCl3 + H2O
AlCl3 + 3KOH = Al(OH)3 + 3KCl
Al(OH)3 + KOH = K[Al(OH)4]
б)
4P + 5O2 = 2P2O5
P2O5 + H2O = H3PO4
H3PO4 + 3KOH = K3PO4 + 3H2O
2K3PO4 + 3Ca(OH)2 = Ca3(PO4)2 + 6KOH
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x5ym1na2
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Answers & Comments
a)
4Al + 3O2 = 2Al2O3
Al2O3 + HCl = AlCl3 + H2O
AlCl3 + 3KOH = Al(OH)3 + 3KCl
Al(OH)3 + KOH = K[Al(OH)4]
б)
4P + 5O2 = 2P2O5
P2O5 + H2O = H3PO4
H3PO4 + 3KOH = K3PO4 + 3H2O
2K3PO4 + 3Ca(OH)2 = Ca3(PO4)2 + 6KOH