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Correction des équations. 7 expériences au labo. Expérience A. HCl (aq) + Zn (s)  H 2 (g) + ZnCl 2(aq). 2. Expérience B. Ca (s) + H 2 O (l)  H 2 (g) + CaO (aq) Ca (s) + H 2 O (l)  H 2 (g) + Ca(OH) 2(aq). 2. Expérience C. 2. 2.

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correction des quations

Correction des équations

7 expériences au labo

exp rience a
Expérience A

HCl (aq) + Zn (s) H2(g) + ZnCl2(aq)

2

exp rience b
Expérience B

Ca (s) + H2O (l) H2(g) + CaO(aq)

Ca (s) + H2O (l) H2(g) + Ca(OH)2(aq)

2

exp rience c
Expérience C

2

2

KI(aq) + Pb(NO3)2(aq) KNO3(aq) + PbI2(s)

exp rience d
Expérience D

2

2

Mg (s) + O2(g) MgO (s)

exp rience e
Expérience E

2

2

2

Cu (s) + HNO3(aq) H2(g) + CuNO3(aq)

Cu(s) + 2HNO3(aq) → CuNO3 + NO2(g) +H2O(l)

exp rience f
Expérience F

C12H22O11(s)  H2O (l) + C(s)

H 2SO4

11

12

exp rience g
Expérience G

2

NiCl2(aq) + NaOH(aq) NaCl(aq)+ Ni(OH)2(s)

2