Kémiai egyeneletek

Kémiai egyeneletek

7th Grade

10 Qs

quiz-placeholder

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Kémiai egyeneletek

Kémiai egyeneletek

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Medium

Created by

Katalin Iván

Used 136+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Alumínium és jód reakciója

Al + I2 →AlI3

2 Al +3 I2 →2 AlI3

2 Al + 2 I2 → 2 AlI3

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Magnézium égése

Mg + O2 → MgO2

Mg + O2 → 2 MgO

2 Mg + O2 → 2 MgO

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Nátrium és klórgáz reakciója

Na + Cl → NaCl

Na2 + Cl → NaCl

2 Na + Cl2 →2 NaCl

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Kén égése

S + O → SO2

S + O2 → SO2

S + O → SO

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Alumínium égése

Al + O2 → AlO2

4 Al + 3 O2 → 2 Al2O3

3 Al + 2 O2 → Al3O2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Kálcium és bróm reakciója

Ca + Br2 → CaBr2

Ca2+ Br2 → Ca2Br2

2 Ca + Br2 → 2 CaBr2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Víz képződése

H2 + O → H2O

2 H2 + O2 → 2 H2O

2 H + O → H2O

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