
9 Klasse Alkalimetalle
Authored by Enita Rastoder
Science
Professional Development
8 Questions
Used 2+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Welches Element ist kein Alkalimetall?
Kalium
Lithium
Natrium
Calcium
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kreuze alle Eigenschaften von Natrium an.
Dichte kleiner als 1 g/mL
leitet elektrischen Strom
reagiert mit Paraffinöl
oxidiert an der Luft
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Wie lautet der chemische Name von Kochsalz?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bei der Reaktion zwischen Natrium und Wasser entsteht:
NaOH + H2
Na + H2O
NaO + H2O
Na + H2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Wie lautet der Name von LiOH
Lithiumoxid
Lithiumhydroxid
Lithiumwasserstoffoxid
Lithiumhydrid
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kreuze alle Eigenschaften einer NaOH Lösung an
ätzend
pH Wert > 7
ist reaktionsträge
wird Natronlauge genannt
reagiert nicht mit organischen Stoffen
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Warum kommen Alkalimetalle in der Natur nicht elementar vor?
Weil sie sehr selten sind
Weil sie keine Bindungen mit anderen Elementen eingehen
Weil sie sehr reaktiv sind und sich mit anderen Elementen binden
Weil man sie nur in Mineralien findet
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