8 клас. Основи. Їх склад та властивості.
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Олена Мусієнко
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть формулу основи.
H2SO4
P2O5
K2CO3
Mg(OH)2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть формулу лугу.
KOH
CuOH
Fe(OH)3
Cr(OH)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть, де назву основи складено не правильно
Cr(OH)2 хром (II) гідроксид
Al(OH)3 алюміній (III) гідроксид
Fe(OH)3 ферум (III) гідроксид
Cu(OH)2 купрум (II) гідроксид
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть, де назву основи складено не правильно
Mg(OH)2 магній гідроксид
Zn(OH)2 цинк гідроксид
Ba(OH)2 барій гідроксид
Pb(OH)2 плюмбум гідроксид
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Фенолфталеїн у лужному середовищі забарвиться у колір:
фіолетовий
синій
малиновий
жовтий
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Місце опіку лугом слід промити великою кількістю води, а потім розчином:
соди
оцту
солі
спирту
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вкажіть основу, яка не змінює забарвлення лукмусу в синій колір
Са(OH)2
NaOH
Al(OH)3
Ba(OH)2
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