
Kemiska reaktioner NE
Quiz
•
Other
•
4th Grade
•
Practice Problem
•
Hard
Marcus Johansson
Used 1+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad händer vid en kemisk reaktion?
A) Atomer förstörs
B) Nya atomer bildas
C) Atomer möbleras om
D) Inga ämnen förändras
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad kallas ämnena som reagerar i en kemisk reaktion?
A) Produkter
B) Reaktanter
C) Atomer
D) Molekyler
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad kallas ämnena som bildas vid en kemisk reaktion?
A) Reaktanter
B) Reaktionspilen
C) Produkter
D) Bindningar
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad visar en reaktionsformel?
A) Hur många elektroner som finns i en atom
B) Vilka ämnen som reagerar och bildas
C) Hur snabbt en reaktion sker
D) Molekylens färg
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad visar en reaktionsformel?
Hur många elektroner som finns i en atom
Vilka ämnen som reagerar och bildas
Hur snabbt en reaktion sker
Molekylens färg
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad är en reaktionspil?
Ett sätt att visa reaktionens riktning
En kemisk symbol
Ett ämne som deltar i reaktionen
En molekylbindning
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vad betyder 2H2 i en reaktionsformel?
Två väteatomer
Två vätemolekyler
Två vattenmolekyler
Två syremolekyler
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