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Nadya0210
@Nadya0210
July 2022
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Сделайте задания их этого слайда, пожалуйста. Заранее спасибо!!!
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Verified answer
1)
BaCl₂ + 2AgNO₃ = 2AgCl↓ + Ba(NO₃)₂
Ba²⁺ + 2Cl⁻ + 2Ag⁺ + 2NO₃⁻ = 2AgCl↓ + Ba²⁺ + 2NO₃⁻
2Ag⁺ + 2Cl⁻ = 2AgCl↓
2HNO₃
+ Na
₂CO₃ = 2NaNO₃
+ H
₂
O + CO
₂
↑
2H
⁺ + 2NO₃⁻ + 2Na⁺ + CO₃²⁻ = 2Na⁺ + 2NO₃⁻
+ H
₂
O + CO
₂
↑
2H
⁺
+ CO
₃²⁻
= H
₂
O + CO
₂
↑
2)
H⁺ + OH⁻ =H₂
O
H⁺ + Cl⁻ + K⁺ + OH⁻ = K⁺ + Cl⁻ + H₂
O
HCl + KOH = KCl + H₂
O
Cu²⁺ + 2OH⁻ = Cu(OH)₂
↓
Cu²⁺ + 2Cl⁻ + 2Na⁺ + 2OH⁻ = Cu(OH)₂
↓ + 2Na
⁺ + 2Cl
⁻
CuCl₂
+ 2NaOH = Cu(OH)
₂
↓ + 2NaCl
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Answers & Comments
Verified answer
1)BaCl₂ + 2AgNO₃ = 2AgCl↓ + Ba(NO₃)₂
Ba²⁺ + 2Cl⁻ + 2Ag⁺ + 2NO₃⁻ = 2AgCl↓ + Ba²⁺ + 2NO₃⁻
2Ag⁺ + 2Cl⁻ = 2AgCl↓
2HNO₃ + Na₂CO₃ = 2NaNO₃ + H₂O + CO₂↑
2H⁺ + 2NO₃⁻ + 2Na⁺ + CO₃²⁻ = 2Na⁺ + 2NO₃⁻ + H₂O + CO₂↑
2H⁺ + CO₃²⁻ = H₂O + CO₂↑
2)
H⁺ + OH⁻ =H₂O
H⁺ + Cl⁻ + K⁺ + OH⁻ = K⁺ + Cl⁻ + H₂O
HCl + KOH = KCl + H₂O
Cu²⁺ + 2OH⁻ = Cu(OH)₂↓
Cu²⁺ + 2Cl⁻ + 2Na⁺ + 2OH⁻ = Cu(OH)₂↓ + 2Na⁺ + 2Cl⁻
CuCl₂ + 2NaOH = Cu(OH)₂ ↓ + 2NaCl