
Kemijske jednadžbe - quiz
Quiz
•
Chemistry
•
7th Grade
•
Medium
Matej Redžo
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ovakav način prikazivanja kemijske jednadžbe je potpun.
živa + sumpor --------> živin(II) sulfid
Točno.
Netočno.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kemijsku jednadžbu izjednačavamo dodavanjem koeficijenta •ispred simbola ili formule reaktanta i produkta.
Točno.
Netočno.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Prikaži kemijsku promjenu kojom nastaje voda. Napiši je riječima!
Ovako: _____ + _____ -> voda
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Zakon o očuvanju mase glasi:
m(kemijska jednadžba) = m(tvari)
m(reaktanti) = m( kemijska jednadžba)
m(reaktanti) = m(produkti)
Ništa od navedenog.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Što je jednadžba kemijske reakcije?
simbolički prikaz jedne kemijske promjene
točkasti prikaz jedne kemijske promjene
logički prikaz jedne kemijske promjene
Ništa od navedenog.
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