
Prawo stałości składu 2
Authored by Agnieszka Półchłopek
Chemistry
7th - 8th Grade
Used 53+ times

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8 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Wskaż wzór chlorku glinu.
AlCl
AlCl3
AlCl2
Al3Cl
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Wskaż wzór siarczku potasu.
KS
KS2
K2S
SK2
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Jeśli we wzorze chemicznym azot jest V-wartościowy a tlen II wartościowy to poprawny wzór przedstawia
N5O2
N5O
NO5
N2O5
4.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Oblicz stosunek masowy fosforu do tlenu w związku P4O10.
31 /40
40 / 31
30 / 41
30 / 40
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Oblicz skład procentowy glinu do tlenu w związku Al2O3
glin 52,94%, tlen 47,06%
glin 51,21%, tlen 48,79%
tlen 46,45 %, glin 53,55%
tlen 49,18%, glin 50,82%
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Oblicz stosunek masowy rtęci do chloru w związku HgCl2
31 / 10
7 / 20
20 / 7
40 / 7
7.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Oblicz skład procentowy węgla do wodoru w związku C2H6
węgiel 75 %, wodór 25 %
węgiel 80 %, wodór 20 %
węgiel 85 % wodór 15 %
węgiel 90 % wodór 10 %
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