КОЭФФИЦИЕНТЫ В УРАВНЕНИЯХ
Quiz by Наталья
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5 questions
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- Q1Где верно уравнено уравнение?Ва + 2Н2О = ВаН2+Н2ОВа + 2Н2О = Ва(ОН)2 +Н2Ва + 2Н2О = Ва(ОН)2 +Н2Ва + Н2О = ВаО+Н245s
- Q2Какое уравнение уравнено верно?С+Н2 = СН42С +О2 = 2СОН2 + О2 =Н2ОС +О2 = СО45s
- Q3Верно ли расставлены коэффициенты? 2Ва + О2 =2ВаОне правильноверно20s
- Q4Определить сумму коэффициентов в данном уравнении: NaOH + H2SO4 = Na2SO4 +H2O485660s
- Q5Какой коэффициент должен стоять вместо ........ ? 4Al + .......O2 =2 Al2O353нет коэффициента245s