Вставьте; has, hasn t, have, haven t 1. ... they got a ball? - Yes she ... 2. ... she got a brother? - id1468976820200422 от 3Pomidorka3 22.04.2020 06:51

Question

Химия: Вставьте; has, hasn t, have, haven t 1. ... they got a ball? - Yes she ... 2. ... she got a brother? - No, she ... 3. ... Helen got a ruler on her desk? - You, she ... 4. ... you got a computer? - No, I ... 5. ... we got apples? You, we ... ​

3Pomidorka3 · Accepted Answer

x г                              y моль (I) 4FeS₂+11O₂=2Fe₂O₃+8SO₂      4*120                        8 моль     (125.6-x)                        1.6-y (II) 2 ZnS    +3O₂=2 ZnO+2 SO₂       2*  97                           2 моль 1. найдем количество SO₂:   n=V /Vm=35.84/22.4=1.6 моль пусть n1(SO₂)=y, n2(SO₂)=1.6-y 2. M(FeS₂)=120 г/моль, M(ZnS)=97 г/моль, M(SO₂)=64 г/моль пусть m(FeS₂)=x, m(ZnS)=125.6-x,  3. составим соотношения: (I) x/4*120=y/8              x=60y (II) (125.6-x)/2*97=(1.6-y)/2...

Вставьте; has, hasn't, have, haven't
1. ... they got a ball? - Yes she ...
2. ... she got a brother? - No, she ...
3. ... Helen got a ruler on her desk? - You, she ...
4. ... you got a computer? - No, I ...
5. ... we got apples? You, we ...

MOGZ ответил

Вставьте; has, hasn't, have, haven't1. ... they got a ball? - Yes she ...2. ... she got a brother? - No, she ... 3. ... Helen got a ruler on her desk? - You, she ... 4. ... you got a computer? - No, I ... 5. ... we got apples? You, we ... ​

MOGZ ответил

Вставьте; has, hasn't, have, haven't
1. ... they got a ball? - Yes she ...
2. ... she got a brother? - No, she ...
3. ... Helen got a ruler on her desk? - You, she ...
4. ... you got a computer? - No, I ...
5. ... we got apples? You, we ...