
Stechiometria
Authored by Joanna Gajewska
Chemistry
12th Grade
Used 76+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Łączna masa substratów jest równa łącznej masie produktów. To prawo:
Stałości składu.
Zachowania masy.
Substratowe.
Sumarycznej różnicy.
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Masę atomu wyraża się w
g/mol
unitach
g
Brak jednostki
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Masa molowa wyraża się w :
g/m
g/mol
mol
u
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ile moli stanowi 9 g wody?
0,5 mola
2 mole
0,25 mola
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reakcja przebiega wg równania 2Al + 3S = Al2S3 . Jeśli do reakcji zużyto 13,5 g Al, to ile g siarczku glinu (Al2S3) otrzymano?
37,5 g
75g
150g
47,5g
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Oblicz, jaką objętość zajmuje w warunkach normalnych 3,5 mola siarkowodoru.
78,4 dm3
22,4 dm3
44,8 dm3
2,24 dm3
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Różne gazy zajmują w tych samych warunkach ciśnienia i temperatury:
taką samą objętość
objętość zależną od pierwiastka który je tworzą
różną objętość
brak poprawnej odpoweidzi
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