8. MASĖS DALIS JUNGINYJE
Quiz
•
Chemistry
•
1st - 10th Grade
•
Practice Problem
•
Hard
Vygandas Marozas
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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Raskite kalio ir jodo masės dalis kalio jodide.
Kalio: 23 proc. jodido: 77 proc.
Kalio: 33 proc. jodido: 67 proc.
Kalio: 77 proc. jodido: 23 proc.
Kalio: 67 proc. jodido: 33 proc.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kokios masės dalys kalcio ir chloro yra kalcio chloride (CaCl2)?
Kalcio: 64 proc, chlorido: 36 proc.
Kalcio: 34 proc, chlorido: 76 proc.
Kalcio: 36 proc, chlorido: 64 proc.
Kalcio: 50 proc, chlorido: 50 proc.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kokia masės dalis chloro yra vandenilio chloride HCl ir natrio chloride NaCl?
HCl yra 61 proc. chloro, o NaCl yra 97 proc. chloro
HCl yra 97 proc. chloro, o NaCl yra 61 proc. chloro
Abiejuose junginiuose chloro yra po 50 proc.
HCl yra 79 proc. chloro, o NaCl yra 16 proc. chloro
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kuriame junginyje deguonies masės dalis yra mažesnė: sieros diokside (SO2) ar anglies diokside (CO2)?
CO2
SO2
Abiejuose vienodai
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kuriame junginyje azoto masės dalis yra didžiausia: amoniake (NH3), azoto monokside (NO), ar azoto rūgštyje (HNO3)?
Visuose vienodai
HNO3
NO
NH3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Apskaičiuokite: aliuminio, sieros ir deguonies masės dalis aliuminio sulfate Al2(SO4)3.
Al 28 proc., S 57 proc., O 16 proc.
Al 57 proc., S 28 proc., O 16 proc.
Al 16 proc., S 28 proc., O 75 proc.
Al 16 proc., S 28 proc., O 57 proc.
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