Dạng toán kim loại, oxit kim loại phản ứng với axit và liên quan



 !"#$%
Hỗn hợp kim loại X HCl/ H2SO4 loãng &'a (g) khí H2 hay V lít
khí()*+, /01/'2&*3*(
415
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0/607.8<; 0$
=,>?5
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H *I@IJ, 0H*($3*>>H *'2(=K1m có thể bằng5
L>?50/'2609:; 6@#9:;0I@IJ @#6M#@:
N$ I7.NOE@F4*>?Gdung dịch HCl P1*Q,
'(Lượng muối cloruaNR
L>?50/60<;0,6 I<;0 6MM@M0S+
, 
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5Kim loại 0H%NG/  … )*+,V lít (hỗn
hợp) khí&'(U*,số mol khí &'(
 5Kim loại M 0*-NG …&' V lít (hỗn hợp) khí (hay số
mol khí đã biết)()*+tìm tên kim loại M.
B5Kim loại 0H%NG-*-NG/  … &' V lít
(hỗn hợp) khí (hay số mol). )*+,m khối lượng kim loại phản ứng.
L>?50'P1U@*G#V:*W5444*'
41504*60E;Q'C0*X
4K6;T" B;T"J;T "I;T 0YZT"B(
6 ;!" :;!J; !0YZ !"#HU*@-[U!" 
6 ; 0YZ "@ !"#$%1T"@\(3*Q*P@*Q
N]I(
!HQ@*04*604K'A-^'_(
Ví dụ:

$#@IMDG'>>T"B&'V lít(Tính V(0>
;L>?504*60DED;Q'C0D60#@IM <;B6I@#M
04K6J;T "6J;0=T " @#
$04*604K6`I@#M6J;0=T " @#6`=6@ :,(
;a,5$04*604K
0DED;Q'C0D6J;T "
0#@IM <;B6J;0=T " @#6`=6@ :(
Nb4M0D@c*>?T"BHU*@O@>-_H * *P'2(Thể
tíchkhí NO2&'0dH*50>
e-f5Al, Cr, Fe không PỨ với HNO3/ H2SO4 đặc nguộiN1*g*Qc
*P'2*hD(c6iD&6Mi 6B(
L>?5$4*64K
0cEj;Q'C0c6T"
0B:M; 60=T"  @#6`=6J@9:,(
*  h    0  D    >>  T"B  %    H *  7  .  ,  A0,1mol
N20,01mol NO(Tính m(0>B
L>?5$4*64K
0DED;Q'C0D60I;T B;T"
0D <;B60I;I@B;I@I6`D69@ <
>$ @<D>T">-H *V lít khí H2(Tính V0>
L>?5$4*64K
0DED;Q'CD6 ;
0 @< <;B6 ;0=  @#6`=6B@B:,(
4$M@#X>$>-H *:@< ,, (Tên X?kG8*QQ'C
(0> (
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08E8;Q'C86 ;
0M@#E;B6 ;0:@<  @#6`E86 <6`8D(
;Bí quyết làm bài thi trắc nghiệm môn hóa 52*HGD_#*&/ @<l
M@#l@IJlI@J1U0 *@HmN*Q#*&/1-1*+_

@%1nHGD(U*Q'C6`D
o$6,4g kim loạiA >G !"#HU*O&'6,4 gam SO2(pkim loại AR
0> (b5$iF4iDic
T_G*#H_+Q'C(
L>?5$04*604K
0DED;Q'CD6 ;!"
0:@#ED; 6 ;0:@#:#6`ED6:#6`D$(
;Bí quyết làm bài thi trắc nghiệm môn hóa 5P1&/:@#1I@:#_%1nHG$(
;e'q5Fe/ Al/ Cr không phản ứng với H2SO4/ HNO3 đặc nguộiV`(YZ
P1&'N2/ N2OU*S, H2S_HGB&5Al/ Mg/ Zn0+*r5L
p>,(a'>o@P1&'!" 0!1 !c(=K1*g*h
$H(
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L>?5$04*604K
0F4EF4;Q'CF46 ;
0F4M:; 6 ;0I@  6`F46M@:(
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 *@Hm*M@:p__nHGF4(
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;Lưu ý: Fe với HNO3/ H2SO4 đặc thì có hóa trị III, còn HCl/ H2SO4 loãng thì có
hóa trị II.
B7.8T"B0HU*%1*+,/ 
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0/607.8: ;04K0T"B4K,-
'
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H *0,896 lít NO>1P0H*(Khối lượng muối nitrat&'5
A. 9@M(B. <@M#(C. <@##(D. @I (
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6 (I:: ;B;0I@J9: @#69@M
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(=K1*hH9@M(
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cập). a, /&o(
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B iJI
;Bí quyết làm bài thi trắc nghiệm môn hóa 5/ /^/
 NH+0>*O(=_K1BI@BH($h&/B @_*Q*1t/ 
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$"(a,khối lượng chất rắnH *($*H5#:i##@#:iB<@:MiB90bD
II<V IIJV II9
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;Bí quyết làm bài thi trắc nghiệm môn hóa 5aP1&/KW&/1V`*w&/
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=_/ *P'2&YZ0>'qNQp^/ NH+
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Ca Ba: khi nào má cần ba
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Tìm CTPT Amin/ HCHC trong các BT đốt cháy
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