Kimi kl 9 A

Kimi kl 9 A

8th Grade

23 Qs

quiz-placeholder

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Kimi kl 9 A

Kimi kl 9 A

Assessment

Quiz

Chemistry

8th Grade

Practice Problem

Medium

Created by

sejmir sela

Used 33+ times

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23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Si e ka formulen acidi fosforik

H2PO4

HF

H3PO4

H2S

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sa atome ka gjithsej formula (NH4)3PO4

18

16

20

15

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cila eshte formula e fosfatit te magnezit

(PO4) Mg3

Mg F2

Mg3(PO4)2

Mg S

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Vendos koefiçentat ne reaksion e dhene : Fe2O3+___HCl = ___FeCl3 + ___H2O

2 , 3  ,  6

6  ,  2  , 3 . 

4  ,  3  ,  6

2  ,  4   ,  6

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Sa gr Cr zhvendos 5.4 gr alumin gjate veprimit me oksidin e kromit trevalent Cr2O3

5.4 gr

54 gr

10.4 gr

12 gr

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Koeficentat qe duhet te vendosen te ky raksion : CaO +HCl = CaCl2 + H2O

  1. 3 . 5 . 4

1 . 2 . 1 . 1

1.1.1.2

2.1.1.2

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Shumica e karbonateve te metaleve shperbehen me ane te ngrohjes ato japin :

metal + dioksid karboni

oksid metali + dioksid karboni + uje

okside metali me dioksid karboni

karbon me oksid metali

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