Question

P2O5->x->K3PO4->FePO4 SI-SIO2->NaSIO3->H2SIO3->SIO2 CuO->CuCl2->Cu(OH)2->CuSO4->Cu FeCO3->FeO->FeCl2->FeS->FeSO4 P2O5->H3PO4->Na3PO4->Ca3(PO4)2->H3PO4 P2O5->x->K3PO4->Ca3(PO4)2 H2S->S->x->Na2SO3 CaO->x+Na2CO3->CaCO3->CO2 MgSO4->x_t_>MgO->Mg(NO3)2 CuCl2->x_t_>CuO->CuSO4

Answer 1

Р2О5 + 3Н2О = 2Н3РО4

3KOH + H3PO4 = K3PO4 + 3H2O

K3PO4 + FeCl3 = FePO4 + 3KCl

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Si + O2 = SiO2

SiO2 + 2NaOH = Na2SiO3 + H2O

Na2SiO3 + 2HCl = 2NaCl + H2SiO3

H2SiO3 = SiO2 + H2O

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CuO + 2HCl = CuCl2 + H2O

CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl

Cu(OH)2 + H2SO4 = CuSO4 + 2H2O

CuSO4 + Mg = MgSO4 + Cu

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FeCO3 = FeO + CO2

FeO + 2HCl = FeCl2 + H2O

FeCl2 + K2S = FeS + 2KCl

FeS + H2SO4 = FeSO4 + H2S

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P2O5 + 3H2O = 2H3PO4

3NaOH + H3PO4 = Na3PO4 + 3H2O

2Na3PO4 + 3Ca(OH)2 = Ca3(PO4)2 + 6NaOH

Ca3(PO4)2 + 3H2SO4 = 3CaSO4 + 2H3PO4

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Р2О5 + 3Н2О = 2Н3РО4

3KOH + H3PO4 = K3PO4 + 3H2O

2K3PO4 + 3Ca(OH)2 = Ca3(PO4)2 + 6KOH

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2H2S + O2 = 2S + 2H2O

S + O2 = SO2

SO2 + 2NaOH = Na2SO3 + H2O

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CaO + CO2 = CaCO3

CaCO3 + CO2 + H2O = Ca(HCO3)2

Ca(HCO3)2 + 2NaOH = CaCO3 + Na2CO3 + 2H2O

Na2CO3 + Ca(OH)2 = CaCO3 + 2NaOH

CaCO3 = CaO + CO2

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MgSO4 + 2NaOH = Mg(OH)2 + Na2SO4

Mg(OH)2 = MgO + H2O

MgO + 2HNO3 = Mg(NO3)2 + H2O

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CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl

Cu(OH)2 = CuO + H2O

CuO + H2SO4 = CuSO4 + H2O

Answer 2

It looks like you've provided a series of chemical reactions involving various compounds. However, some parts are not complete or may contain errors. Let's analyze each reaction step by step and complete the missing information:

1. P2O5 -> x -> K3PO4 -> FePO4 It seems that there is a missing compound in the first step. We cannot determine the reactions without knowing what 'x' is.

2. SI-SIO2 -> NaSIO3 -> H2SIO3 -> SIO2 This series of reactions seems to be incorrect. Silicon dioxide (SiO2) is a stable compound and does not typically undergo direct transformations to the other compounds listed. If there was a specific reaction you intended, please provide additional information.

3. CuO -> CuCl2 -> Cu(OH)2 -> CuSO4 -> Cu These reactions appear to be incomplete. CuO (copper(II) oxide) can react with hydrochloric acid (HCl) to form copper(II) chloride (CuCl2). However, additional steps are needed to convert CuCl2 to Cu(OH)2, CuSO4, and finally to elemental copper (Cu). Please provide more information or specific conditions for each reaction.

4. FeCO3 -> FeO -> FeCl2 -> FeS -> FeSO4 These reactions seem mostly accurate. Iron(II) carbonate (FeCO3) can decompose to form iron(II) oxide (FeO), which can further react with hydrochloric acid (HCl) to produce iron(II) chloride (FeCl2). Then, by reacting iron(II) chloride with hydrogen sulfide gas (H2S), it can form iron(II) sulfide (FeS), which can be oxidized by oxygen or sulfuric acid (H2SO4) to form iron(II) sulfate (FeSO4).

5. P2O5 -> H3PO4 -> Na3PO4 -> Ca3(PO4)2 -> H3PO4 This sequence of reactions appears to be incorrect. In the first step, P2O5 reacts with water (H2O) to form phosphoric acid (H3PO4). The next steps should involve the reaction of phosphoric acid with specific reagents to form sodium phosphate (Na3PO4) or calcium phosphate (Ca3(PO4)2). However, the final step shows H3PO4 appearing again, which doesn't fit.

6. P2O5 -> x -> K3PO4 -> Ca3(PO4)2 Similar to the first reaction, there is a missing compound denoted by 'x.' Without knowing what this compound is, we cannot determine the reactions beyond P2O5.

7. H2S -> S -> x -> Na2SO3 The first two steps show the conversion of hydrogen sulfide (H2S) to sulfur (S). However, there is an unknown compound 'x' before sodium sulfite (Na2SO3). Without more information, we cannot proceed with the reactions.

8. CaO -> x + Na2CO3 -> CaCO3 -> CO2 There is a missing compound denoted by 'x' in the first step. We need to know the specific reactant or conditions to determine the subsequent reactions.

9. MgSO4 -> x_t_ -> MgO -> Mg(NO3)2 The first step shows magnesium sulfate (MgSO4), but the reaction indicated by 'x_t_' is unclear. Without further details, we cannot determine the reactions beyond this point.

10. CuCl2 -> x_t_ -> CuO -> CuSO4 Similar to the previous reactions, there is an unknown reaction denoted by 'x_t_' in the first step. Please provide additional information for this reaction to proceed.

In summary, many of the reactions provided are incomplete or ambiguous. If you can provide more specific details or clarify the missing information, I'll be happy to help you balance and understand the chemical reactions better.