Pytania w załączniku, to w sumie konkurs, i niektóre odp pozaznaczane, jesli dobrze prosze o potwierdzenie.
1....B
2....D
3....B
4....D
5....C
6....D
7....A
8....D
9....C
10..A
11..B
12..C
13..A
14..C
15..B
1)
p+n+e=40
40/3=13+1
p=13, e=13, n=14
A=27, Z=13
Jest to GLIN--Al
2)
d=3,17g/dm3
v=0,945dm3
m=v*d=0,945*3,17=3g
ms=3g
mr=503g
Cp=ms*100%/mr
Cp=3*100/503
Cp = 0,6%
3)
a) 4Al + 3O2---->2Al2O3
b) 2Al(OH)3---->Al2O3 + 3H2O
4)
a) Br2
b) H2O2
c) NH3
d) Ca(OH)2
e) CO2
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1....B
2....D
3....B
4....D
5....C
6....D
7....A
8....D
9....C
10..A
11..B
12..C
13..A
14..C
15..B
1)
p+n+e=40
40/3=13+1
p=13, e=13, n=14
A=27, Z=13
Jest to GLIN--Al
2)
d=3,17g/dm3
v=0,945dm3
m=v*d=0,945*3,17=3g
ms=3g
mr=503g
Cp=ms*100%/mr
Cp=3*100/503
Cp = 0,6%
3)
a) 4Al + 3O2---->2Al2O3
b) 2Al(OH)3---->Al2O3 + 3H2O
4)
a) Br2
b) H2O2
c) NH3
d) Ca(OH)2
e) CO2