Keemia kontrolltöö

Keemia kontrolltöö

8th Grade

19 Qs

quiz-placeholder

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Keemia kontrolltöö

Keemia kontrolltöö

Assessment

Quiz

Social Studies

8th Grade

Easy

Created by

Maret Evisalu

Used 1+ times

FREE Resource

19 questions

Show all answers

1.

OPEN ENDED QUESTION

3 mins • 1 pt

Kõigi hapete koostisse kuulub …………………………….. .

Evaluate responses using AI:

OFF

2.

OPEN ENDED QUESTION

5 mins • 2 pts

 Vesilahustes eralduvad hapete molekulidest positiivsed  ………………………………… - ioonid ning happeaniooni negatiivne laeng on võrdne ………………………………………………………………………………….. .

Evaluate responses using AI:

OFF

3.

OPEN ENDED QUESTION

10 mins • 3 pts

Hapete ühised omadused on …………………………………………….. , ………………………………………… ja …………………………………………………………… .

Evaluate responses using AI:

OFF

4.

OPEN ENDED QUESTION

3 mins • 2 pts

Kirjuta välja ainult hapete valemid

NaOH     H₂SO₃       Fe(OH)₂    Cl₂O₅     H₂CO₃        H₂O

Evaluate responses using AI:

OFF

5.

OPEN ENDED QUESTION

3 mins • 2 pts

Kirjuta välja ainult aluste valemid

NaOH     H₂SO₃       Fe(OH)₂    Cl₂O₅     H₂CO₃        H₂O

Evaluate responses using AI:

OFF

6.

OPEN ENDED QUESTION

15 mins • 6 pts

NaOH ……………………………………

Fe(OH)₂ …………………………………

KOH …………………………………….

Cr(OH)₃ …………………………………

Hg(OH)₂ ………………………………….

Al(OH)₃ ……………………………………

Evaluate responses using AI:

OFF

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

tsink(II)hüdroksiidi valem on

Zn2OH

Zn(OH)2

ZnOH

ZnO2

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