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svetusvet
@svetusvet
July 2022
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помогите,пожалуйста. 8-31
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HUH39I
Verified answer
Думаю, с направлением стрелок разберетесь)
2Na + 2H2O = 2NaOH + H2↑
2Na + S = Na2S
2Na + Cl2 = 2NaCl
NaOH + HBr = NaBr + H2O
Na2S + Br2 = 2NaBr + S↓
2NaOH + CO2 = Na2CO3 + H2O
Na2CO3 + 2HCl = 2NaCl + H2O + CO2↑
Na2CO3 + 2HNO3 = 2NaNO3 + H2O + CO2↑
NaBr + AgNO3 = NaNO3 + AgBr↓
2NaCl(тв.) + H2SO4(конц.) = Na2SO4 + 2HCl↑
2NaNO3(тв.) + Н2SO4(конц.) = Na2SO4 + 2HNO3↑
Na2SO4 + 4H2 = Na2S + 4H2O
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Answers & Comments
Verified answer
Думаю, с направлением стрелок разберетесь)2Na + 2H2O = 2NaOH + H2↑
2Na + S = Na2S
2Na + Cl2 = 2NaCl
NaOH + HBr = NaBr + H2O
Na2S + Br2 = 2NaBr + S↓
2NaOH + CO2 = Na2CO3 + H2O
Na2CO3 + 2HCl = 2NaCl + H2O + CO2↑
Na2CO3 + 2HNO3 = 2NaNO3 + H2O + CO2↑
NaBr + AgNO3 = NaNO3 + AgBr↓
2NaCl(тв.) + H2SO4(конц.) = Na2SO4 + 2HCl↑
2NaNO3(тв.) + Н2SO4(конц.) = Na2SO4 + 2HNO3↑
Na2SO4 + 4H2 = Na2S + 4H2O