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oksanakosarevic7
@oksanakosarevic7
August 2021
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здійсніть перетворення S->SO2->SO3->H2SO4->Na2So4->CaSO4
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Lizzie2018
S —› SO₂ —› SO₃ —› H₂SO₄ —› Na₂SO₄ —› CaSO₄.
1) S + O₂ —› SO₂ (t°C).
2) 2SO₂ + O₂ —› 2SO₃ (t°C ; V₂O₅).
3) SO₃ + H₂O⇄H₂SO₄ + Q.
4) 2Na + H₂SO₄(разбавленная) —› Na₂SO₄ + H₂↑.
5) Na₂SO₄ + Ca(NO₃)₂ —› 2NaNO₃ + CaSO₄↓.
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Answers & Comments
S —› SO₂ —› SO₃ —› H₂SO₄ —› Na₂SO₄ —› CaSO₄.