Siera

Siera

10th Grade

10 Qs

quiz-placeholder

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Siera

Siera

Assessment

Quiz

Chemistry

10th Grade

Hard

Created by

Meilė Bukytė

Used 24+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Junginiuose su metalais sieros oksidacijos laipsnis visada yra

-2

+2

+3

+4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Koks junginys susidaro, kai siera dega?

SO2

SO3

H2S

H2SO3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kokia sąlyga reikalinga, kad degimo metu susidarytų SO3 ?

Katalizatorius

Daugiau deguonies

Stipriau kaitinti

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kuris apibūdinimas tinka SO3 ?

Rūgštinis oksidas, sudarantis H2SO3

Rūgštinis oksidas, sudarantis H2SO4

Bazinis oksidas, neutralizuojantis rūgštis

Bazinis oksidas, reaguojantis su vandeniu

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Kaip užbaigtumėte šią reakcijos lygtį:

SO2 + H2O --> ?

H2SO3

H2SO4

H2S + O2

SO3 + H2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ką įrašytumėte vietoj daugtaškio šioje reakcijos lygtyje:

SO3 + ... --> K2SO4 + H2O ?

2 KOH

K2O

K2S

2 K

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ką įrašytumėte vietoje daugtaškio šioje reakcijos lygtyje:

SO2 + ... --> Na2SO3 ?

Na2O

2 NaOH

Na2S

NaCl

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