Bereken de onbekende massa's

Rekenen met massaverhoudingen

Quiz
•
Chemistry
•
3rd Grade
•
Medium
R. van Dijk
Used 10+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1,5 gr zuurstof en 6,0 gr magnesiumoxide
13 gr zuurstof en 25 gr magnesiumoxide
13 gr zuurstof en 33 gr magnesiumoxide
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bereken de onbekende massa's
1,0 gr zuurstof en 2,5 gr magnesiumoxide
2,0 gr zuurstof en 5,0 gr magnesiumoxide
2,0 gr zuurstof en 2,5 gr magnesiumoxide
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bereken het massa % natrium in natriumchloride
die ontstaat in de vormingsreactie van natrium + chloor.
(1,0 / 2,5) x 100 % = 40 %
(1,5 / 1,5) x 100 % = 100 %
(1,0 / 1,5) x 100 % = 66 %
(1,5 / 2,5) x 100 % = 60 %
(1,5 / 2,5) x 100 % = 60 %
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bereken het massa % ijzer in ijzersulfide
die ontstaat in de vormingsreactie van ijzer + zwavel.
(1,0 / 2,7) x 100 % = 37 %
(1,7 / 2,7) x 100 % = 62 %
(1,0 / 1,7) x 100 % = 58 %
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bereken hoeveel gram ijzer er ontstaat bij de ontleding van 5,4 gram ijzersulfide.
1,7 g
3,4 g
2,0 g
5,4 g
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De reactie A --> B + C + D is een ....... reactie
Vormings
ontledings
verbrandings
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De reactie A + B --> C is een ....... reactie
Vormings
ontledings
verbrandings
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De reactie A + zuurstof --> C is een ....... reactie
Vormings
ontledings
verbrandings
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