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ວິຊາ ເຄມີສາດ ມ4 ອຈ ແມະພອນ

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ວິຊາ ເຄມີສາດ ມ4 ອຈ ແມະພອນ
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12 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ໃນ 1,6 g ຂອງທອງ II ຊູນຟັດ ( CuSO4 ຈະມີທອງ (Cu) ເທົ່າໃດກຣາມ ?

0,64 g

6,4g

64g

0,064g

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ຈົ່ງຄິດໄລ່ມວນສານໂມເລກຸນ Na2NO2 ເທົ່າທໍ່ໃດ ?

70

71

73

74

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ໃນທາດປະສົມ Na2 CO2 10g ມີທາດມູນ Na ຈັກg ?

4,339g

4,338g

4,337g

4,336 g

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ກຸ່ມທາດໃດຕໍ່ໄປນີ້ແມ່ນສູດເຄມີຂອງທາດດ່ຽວທັງໝົດ ?

Na,Ca,Cl2

Mg,NaOH,S

H2O,He,O2

NH3, Ba, Cu

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ມວນສານໂມເລກຸນຂອງ Al2O3 ເທົ່າທໍ່ໃດ ?

101

102

103

104

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ສູດໂມເລກຸນ Fe (NO3)2 ມວນສານໂມເລກຸນແມ່ນ:

160

170

180

190

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ອາຊິດກຼໍເຮີ ມີສູດແນວໃດ ?

HClO

HClO2

HClO3

HClO4

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