
Химия сессия 30-45
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие соли не гидролизуются?
NaCI, K2SO4
KNO3, FeSO4
BaCl2,CaSO3
Na2SO4, (NH4)2CO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая система является примером большой дисперсионной системы?
Ньютоновская жидкость
Эмульсия
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какая формула используется для выражения дисперсии?
Д=Σ/N
Д=Σ( (X - μ)^3 )/N
Д=1/а
Д=Σ(X + μ)^2/N
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Сколько граммов соли необходимо для приготовления 200 мл 0,1М раствора СuЅО4∙5Н2О?
25
41
0.15
17
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое уравнение описывает математическое выражение закона взаимодействующих масс?
А=k[B]^nA]^m
δ=k[B]n[A]m
υ=k[A]m. [B]n
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Для какого соединения теплота образования равна нулю?
ZnCl2
BeSiO3
N2
NaCl
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Каково осмотическое давление крови человека при температуре 36,6°С?
10,2 атмосфер
3,5 Па
7,7 атмосфер
780 кПа
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