4,48 л х л
СН4 + 4Cl2 = CCl4 + 4HCl
22,4 л 89,6 л
х=4,48 л*89,6 л/22,4 л = 17,92 л
<span><span>SiO2 + Na2CO3 = Na2SiO3 + CO2</span></span>
<span>SiO2 + 2NaOH = Na2SiO3 + H2O</span>
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Mg+2CH3COOH=(CH3COO)2Mg+H2↑
MgO+2CH3COOH=(CH3COO)2Mg+H2O
AlCl₃ + 3AgNO₃ = Al(NO₃)₃ + 3AgCl
Al³⁺ + 3Cl⁻ + 3Ag⁺ + 3NO₃⁻ = Al³⁺ + 3NO₃⁻ + 3AgCl↓
3Cl⁻ + 3Ag⁺ = 3AgCl↓
2KOH + H₂SO₄ = K₂SO₄ + 2H₂O
2K⁺ + 2OH⁻ + 2H⁺ + SO₄²⁻ = 2K⁺ + SO₄²⁻ + 2H₂O
2OH⁻ + 2H⁺ = 2H₂O