Reaktionsgleichung

Reaktionsgleichung

8th - 10th Grade

10 Qs

quiz-placeholder

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Reaktionsgleichung

Reaktionsgleichung

Assessment

Quiz

Chemistry

8th - 10th Grade

Practice Problem

Hard

Created by

Florian Bäumchen

Used 35+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Auf beiden Seiten der Reaktionsgleichung müssen ...

gleich viele Stoffe stehen.

gleiche viele Atome jedes Elements.

immer mindestens zwei Stoffe stehen.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 x H2O  O2 + y H2x\ H_2O\ \longrightarrow\ O_2\ +\ y\ H_2 

Gib die Koeeffizienten x und y an.

x = 1 , y = 2

x = 1 , y = 1

x = 2, y = 2

x = 2, y = 1

3.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

 2 S +x O2  2 SO22\ S\ +x\ O_2\ \longrightarrow\ 2\ SO_2 

x = ?

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Caesium + Fluor -----> Caesiumfluorid

2 Cs + F2 -----> 2 CsF

2 Cs + 2 F -----> 2 CsF

Cs2 + F2 -----> 2 CsF

2 Cs + F2 -----> Cs2F2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

CH4 + O2 -----> O2 + 2 H2O

Richtig

Falsch

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

2 Fe + 3 Cl2 -----> 2 FeCl3

Richtig

Falsch

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Al2O3 + 6 HI -----> AlI3 +3 H2O

Falsch, es müsste eine "2" vor "AlI3"

Falsch, es müsste "Al2I3" heißen.

Richtig

Falsch, es müsste "AlO3" heißen.

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