równania reakcji chemicznych
Authored by Iwona Iwona
Chemistry
1st - 3rd Grade
Used 1K+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uzgodnij równanie reakcji N2 + H2 = NH3
2N2 + 6H = 2NH3
4N + H2 = 2NH
N2 + 3H2 = 2NH3
4N + 2H3 = N2H3
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uzgodnij równanie reakcji Al + H2S = Al2S3 + H2
Al2 + 3H2S = Al2S3 + 3H2
2Al + 3H2S = Al2S3 + 3H2
Al + 3H2S = Al2S3 + H2
2Al + H2S = Al2S3 + H2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
zapisz i uzgodnij równanie reakcji
żelazo + tlen = tlenek żelaza (II)
2Fe + O2 = 2FeO
2Fe + O = 2FeO
Fe + O2 = FeO2
2Fe + O = FeO2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uzgodnij równanie reakcji
Fe + HCl = FeCl2 + H2
2Fe + 4HCl = 2FeCl2 + 2H2
Fe + 2HCl = FeCl2 + H2
2Fe + 4HCl = 2FeCl2 + 2H2
3Fe + 6HCl = 3FeCl2 + 3H2
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uzgodnij równanie reakcji
N2 + O2 = N2O3
2N2 + 3O2 = 2N2O3
2N + O2 = N2O3
N2 + 2O = N2O3
2N + O2 = 3N2O
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uzgodnij równanie reakcji
Mn + O2 = Mn2O7
2Mn + 7O = Mn2O7
2Mn + 7O2 = 2Mn2O7
4Mn + 7O2 = 2Mn2O7
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Uzgodnij równanie reakcji
CuO + C = Cu + CO2
CuO2 + C = Cu + CO2
2CuO + C = Cu2 + CO2
4CuO + 2C = 4Cu + 2CO2
2CuO + C = 2Cu + CO2
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