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Hóa học

Authored by Tâm Ngô

others

9th - 12th Grade

Used 1+ times

Hóa học
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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

Media Image

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

Media Image

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

Media Image

Heat is energy transferred to the motion of ___

trebuchets

atoms and molecules

objects

nuclear particles

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