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BÀI TẬP TRẮC NGHIỆM HÓA ĐẠI CƯƠNG VÀ VÔ CƠ CẨM NANG DÙNG LUYỆN THI THPTQG CHẤT LƯỢNG CAO (COLOR BOOK)

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16<br />

Ion<br />

Na +<br />

K +<br />

Ba 2+ ion SO 4<br />

2 , CO 3<br />

2<br />

Ca 2+ + CO 3<br />

2<br />

CaCO 3<br />

ion CrO<br />

2<br />

Ca 2+ 4 vàng chanh Ba 2+ + CrO<br />

2 4 BaCrO 4<br />

Mg 2+ OH Mg 2+ + 2OH Mg(OH) 2<br />

Fe 2+ OH Fe 2+ + 2OH Fe(OH) 2<br />

MnO 4 /H + 5Fe 2+ +MnO 4 +8H + 5Fe 3+ +Mn 2+ +4H 2 O<br />

Fe 3+ SCN Fe 3+ + 3SCN Fe(SCN) 3<br />

OH Fe 3+ + 3OH Fe(OH) 3<br />

NH 4+ OH mùi khai NH 4<br />

+<br />

+ OH NH 3 + H 2 O<br />

Al 3+<br />

Al 3+ + 3OH Al(OH) 3<br />

Cr 3+<br />

OH<br />

xám, tan trong OH<br />

Al(OH) 2 + 2OH AlO 2 + 2H 2 O<br />

Sn 2+<br />

Pb 2+<br />

OH-<br />

S 2 Pb 2+ + S 2 PbS<br />

Zn 2+ OH Zn(OH) 2 +2OH ZnO 2<br />

2<br />

+2 H 2 O<br />

3 3 Zn(OH) 2 + 4NH 3 [Zn(NH 3 ) 4 ](OH) 2<br />

Cu 2+ 3<br />

xanh, tan trong NH 3<br />

Ni 2+ xanh, tan trong NH 3<br />

3 3 AgOH + 2NH 3 [Ag(NH 3 ) 2 ]OH<br />

Cl Ag + + Cl AgCl<br />

Ag + Br , Ag + + Br AgBr<br />

I Ag + + I AgI<br />

3<br />

384

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