Ответ=2NaBr+CH3-CH(CH3)-CH2-CH3
Объяснение:
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Ca(OH)2+CaBr2 не идет
Ca(OH)2+2HBr=CaBr2+2H2O
Ca(OH)2+CaSO4 не идет
Ca(OH)2+Ca3(PO4)2 не идет
Ca(OH)2+CaCO3 не идет
Ca(OH)2+CaS не идет
А) Ca3P2 + 6<span>HCl </span>= 3CaCl2 + 2PH<span>3
</span>2PH3 + 4O2 =<span> P</span>2O5 + 3H2<span>O
</span>P2O5 + 6<span>NaOH </span>= 2Na3PO4 + 3H2O
б) FeO + CO = Fe + CO2
Fe + 2<span>HCl </span>=<span> FeCl</span>2 +<span> H</span><span>2
</span>FeCl2 + 2<span>NaOH </span>=<span> Fe(OH)</span>2 + 2<span>NaCl
</span>4Fe(OH)2 +<span> O</span>2 + 2H2<span>O </span>= 4Fe(OH)3
в) Na2<span>O </span>+ 2<span>HBr </span>= 2<span>NaBr </span>+<span> H</span>2<span>O
</span>2<span>NaBr </span>+<span> Cl</span>2 = 2<span>NaCl </span>+<span> Br</span><span>2
</span>NaCl +<span> AgNO</span>3 =<span> NaNO</span>3 +<span> AgCl</span>
г) C + O2 = CO2
CO2 + 2<span>NaOH </span>=<span> Na</span>2CO3 +<span> H</span>2<span>O
</span>Na2CO3 + 2HNO3 = 2NaNO3 +<span> H</span>2<span>O </span>+<span> CO</span><span>2</span>