
Hóa học
Quiz
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others
•
9th - 12th Grade
•
Practice Problem
•
Hard
Tâm Ngô
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20 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which of these elements are Halogens?
Fluorine
Helium
Zinc
Bromine
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Work is energy transferred to the motion of ___
particles
atoms and molecules
objects
humans
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2: Cách hợp lí nhất để tách muối từ nước biển là:
A. Lọc
B. Làm bay hơi nước
C. Để yên để muối lắng xuống gạn đi
D. Chưng cất
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The enthalpy of formation for an individual elements' most stable form at standard state is defined as ___
zero
one
25
273
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức hóa học của clorua vôi là
CaCl2.
CaOCl2.
Ca(OH)2
CaO.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy axit nào sau đây được xếp theo chiều tăng dần tính axit
HF, HBr, HCl, HI.
HF, HI, HBr, HCl.
HF, HCl, HBr, HI.
HCl, HBr, HI, HF.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Heat is energy transferred to the motion of ___
trebuchets
atoms and molecules
objects
nuclear particles
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