}ĿijУW(xu)dȤСMͬW(xu)l(f)F(xin)LʹõğˮصײһˮˮҪɷ̼}͚V?yu)˜y(c)ˮ̼}ĺȡijNϡ}100 g뵽15.8 gˮa(chn)CO2wrDʾӋ(j)㣺
1ĈDпԿ15.8 gˮc}ᷴ(yng)CO2
2ˮ̼}|(zh)?jn)?sh)Ƕ٣Ӌ(j)Y(ji)0.1%
3ϡ}|(zh)|(zh)?jn)?sh)ǶӋ(j)Y(ji)0.1%
𰸡(1)4.4g;(2)63.3%;(3)7.3%
ԇ}}|(zh)|(zh)ɱД(sh)(j)Дɶ̼|(zh)(j)̼|(zh)Ӌ(j)̼}|(zh)ϡ}Ȼ|(zh)M(jn)һӋ(j)ˮ̼}|(zh)?jn)?sh)ϡ?jn)?sh)
1ĈDпԿ15.8gˮc}ᷴ(yng)CO24.4g
2O(sh)̼}|(zh)xȻ|(zh)y
CaCO3+2HClTCaCl2+H2O+CO2
100 73 44
x y 4.4g
=
=
x=10gy=7.3g
ˮ̼}|(zh)?jn)?sh)ǣ100%=63.3%
ˮ̼}|(zh)?jn)?sh)63.3%
3ϡ}|(zh)|(zh)?jn)?sh)ǣ100%=7.3%
ϡ}|(zh)|(zh)?jn)?sh)7.3%
ĿлW(xu) Դ }ͣ
}ĿijSUҺкy˻YԴͷֹȾh(hun)UҺм^Fмַ(yng)^Vɴ˵óĽY(ji)Փ_
A.VwֻAgVҺкAgNO3Fe(NO3)2
B.VwֻAgVҺֻFe(NO3)2
C.VwAgFeVҺֻFe(NO3)2
D.VwAgFeVҺкAgNO3Fe(NO3)2
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
}Ŀ16֣l(f)ͷ۵Ҫɷк̼cijW(xu)dȤСMͬW(xu)(du)̼c|(zh)M(jn)̽
̽
(sh)(yn)һ̼̽cҺA
pHԇy(c)̼cҺpHs8֪̼cҺ
(sh)(yn)̼̽cğ᷀(wn)
Yϡ̼cܟֽ⣬ˮһNwһNҊĹw|(zh)
(sh)(yn)1ȡһ|(zh)̼cŵ~ƬϼӟDʾ
1ӟһΕr(sh)g^쵽(ni)ˮ顣
2ּӟѸٵD(zhun)^mijʯˮʎ^쵽ʯˮ׃fԓw
3ͨ^M(jn)һČ(sh)(yn)̽_ּӟĹwa(chn)ijɷ
O(sh)ٿNa2CO3
ڿNaOH
ۿ
(sh)(yn)2
(sh)(yn) | (sh)(yn)F(xin) | (sh)(yn)Y(ji)Փ |
AԓwsˮƳҺȡҺԇ μϡ} | Кwa(chn) | O(sh) ̖(ho) |
BȡҺԇμ Һ | wa(chn) Na2CO3 | |
CȡBEoúόҺ Һ | o@F(xin) | O(sh) |
(sh)(yn)Y(ji)ՓNaHCO3ܟֽĻW(xu)ʽ
չ(sh)(yn)Ѓƿʧȥ(bio)ĹwˎƷ֪̼c̼cܷO(sh)Ӌ(j)һ(g)(sh)(yn)M(jn)beՈ(qng)Č(sh)(yn)F(xin)ͽY(ji)Փ
̽
y(c)ijl(f)ͷ̼c|(zh)?jn)?sh)O(sh)Ӌ(j)(sh)(yn)Ҫ(sh)(yn)E£
ٰDMbxȡ50gƷFƿУP(gun)]b_aČ(do)A̎һĿ՚
P(gun)]a_bϡҺֱFƿ(ni)ٮa(chn)
P(gun)]b_aČ(do)A̎һĿ՚
ܜy(c)܃(ni)Aʯң}͚cwĻӵ|(zh)ҊD
؏(f)Eۺܵ͢IJֱ܃(ni)|(zh)|(zh)ӡ
1EټƷǰ߀(yng)
2bü bҵ
3Ո(qng)P(gun)(sh)(j)Ӌ(j)Ʒ̼c|(zh)?jn)?sh)Ӌ(j)^̣
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
}Ŀ{҇ѽ(jng)_ʼ(zh)˵һ(xing)µķҎ(gu)ͨʹõһNƾzy(c)xbt(W(xu)ʽK2Cr2O7)ԓtԪ(Ԫط̖(ho)Cr)Ļσr(ji)
A+3 B+4 C+5 D+6
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
}ĿW(xu)(sh)(yn)̎̎F(xin)ɫ׃лW(xu)(sh)(yn)еɫ׃ό(sh)(yn)(sh)
AFᔷ~ҺҺ{(ln)ɫ׃?yu)\Gɫ
B՚ȼƿSɫ׃?yu){(ln)ɫ
Cߜؼӟľ̿c~Ļwɺɫ׃ɼtɫ
Dˮмi⛣Һwɟoɫ׃ϼtɫ
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
}ĿЌ(sh)(yn)?zi)Č?du)(yng)Č(sh)(yn)_
(sh)(yn)?zi)?/span> | (sh)(yn) | |
A | be̼һ̼ | քeɷNwͨʯˮ |
B | beˮ^Һ | i^ǷК |
C | ˮ͵VȪˮ | ^Ƿ |
D | ^՚˺wCO2ĺ | ʯˮʎ^F(xin) |
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
}ĿǴкһNQʣtng|(zh)仯W(xu)ʽCOS֪c̼ĽY(ji)(gu)ƣȼP(gun)ʵf_
A
BʵĻW(xu)|(zh)c̼ĻW(xu)|(zh)ȫͬ
Cʿ
D̼ԪءԪغԪNԪؽMɵ
鿴𰸺ͽ>>
ĿлW(xu) Դ }ͣ
}Ŀ(5)ССϼڎώ팍(sh)(yn)r(sh)l(f)F(xin)ij(sh)(yn)_(ti)Ϸһ(g)o_ڵļ(x)ƿҘ(bio)ȱD(du)˃ͬW(xu)̽Һ|(zh)ijɷ
[}]ԭ_ڵ@ƿҺкһN|(zh)ʲô(]NaHCO3)
[M(jn)в]ԭ_ڵ@ƿҺ|(zh)пǣNaClNa2CO3Na2SO4NaOHNaNO3
[M(jn)Ќ(sh)(yn)]СȡԇBaCl2Һаɫa(chn)ټ1________________2_____________F(xin)CҺкNa2CO3
СϼȡԇУη̪Һ^쵽Һ׃?yu)tɫټ^Ca(NO3)2аɫa(chn)ԇеҺȻtɫfҺке|(zh)3__________________
[˼]ͨ^ͬW(xu)Č(sh)(yn)֪4___________(sh)(yn)F(xin)F(xin)ԭ5____________________________________________
鿴𰸺ͽ>>
ʡ(lin)W(wng)`ͲϢe(bo)ƽ_(ti) | W(wng)кϢe(bo)^(q) | p_e(bo)^(q) | vʷ̓oxкϢe(bo)^(q) | ֙(qun)e(bo)^(q)
`ͲϢe(bo)Ԓ027-86699610 e(bo)]䣺58377363@163.com