
Химия негіздер 1
Authored by Гулим Сагитжанова
Science
8th Grade
Used 3+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1.Негіздер қатарын белгіле
А) LiOH, Al(OH)3, CuO
Б) NaOH, Zn(OH)2, Fe(OH)2
B) Ca(OH)2, CaO, Ba(OH)2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.Суда ерімейтін негіздерді басқаша қалай атайды?
А) гидроксидтер
Б) сілтілер
В) оксидтер
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3. Сілтілік ортада лакмус түсі:
Қызарады
көгереді
өзгермейді
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4. Суда ерімейтін негіздерді алуға тән реакция:
А)Na2O+H2O→ 2NaOH
Б)2K+2H2O→2KOH +H2
В)CuCI2+2NaOH→Cu(OH)2 +2NaCI
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5. Натрий гидроксидіндегі натрийдің массалық үлесі%
А) 56
Б) 57,5
В) 55
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6. Сілтілік ортада түссіз фенолфталеин қандай түске өзгереді?
қызыл
көк
таңқурай түсті
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