Keemia 10.kl metallid

Keemia 10.kl metallid

9th Grade

20 Qs

quiz-placeholder

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Keemia 10.kl metallid

Keemia 10.kl metallid

Assessment

Quiz

Chemistry

9th Grade

Practice Problem

Medium

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20 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Vali loetelust kolm väidet, mis iseloomustavad metalle.

Punaka värvusega hea elektrijuht

Rohekas väga mürgine gaas

Hallika värvusega hästi töödeldav materjal

Hea elektri- ja soojusjuht

Kollakas tahke kristalliline aine, ei juhi elektrit

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Metallid käituvad keemilistes reaktsioonides ...

redutseerijatena (loovutavad elektrone)

oksüdeerijatena (liidavad elektrone)

nii redutseerijate kui oksüdeerijatena

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Millist metalli tuleb säilitada tema kõrge keemilise aktiivsuse tõttu õlikihi all?

Zn

Al

Mg

Na

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Milline järgmistest metallidest on kõige aktiivsem?

Baarium

Kroom

Liitium

Raud

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Tina(IV)oksiidi valem on...

SnO

SnO2

Sn2O

Sn4O

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Metall + hape =

sool + vesinik

sool + vesi

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Zn + 2HCl =

Zn + HCl

ZnCl + H2O

ZnCl2 + H2

ZnCl2 + H2O

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