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Keemiline valem ja kovalentne side, 8. klass

Authored by Annika Sakkarias

Chemistry

8th Grade

Used 17+ times

Keemiline valem ja kovalentne side, 8. klass
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11 questions

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1.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Mis on kovalentne side?

(a)  

2.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Kuidas kovalentne side tekib?

(a)  

3.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Märgi kovalentse sidemega ainete valemid.

KCl

CaCl2

H2O

4.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Märgi kovalentse sidemega ainete valemid (2p).

Li2O

N2

MgF2

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Millised ained on lihtained?

K2CO3

Cl2

Cu

FeS

O2

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Millised ained on liitained?

K2CO3

Cl2

Cu

FeS

O2

7.

FILL IN THE BLANKS QUESTION

2 mins • 1 pt

Koosta molekulivalem, kui aine koosneb kahest süsiniku aatomist ja kuuest vesikinu aatomist.


NB! Kahjuks vastuse kirjutamisel alaindeks ei saa panna. Seetõttu võib kirjutada suure numbriga. Nt H2=H2

(a)  

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