3HV - Mol, molaire massa en reacties
Quiz
•
Science, Chemistry
•
3rd Grade
•
Practice Problem
•
Medium
M. Broekhuizen
Used 7+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Wat is de molecuulmassa van CH4?
12,01 g/mol
16,042 g/mol
20,04 g/mol
21,031 g/mol
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Als je de massa van een stof weet, en je wilt berekenen hoeveel mol het is, dan moet je de massa...
delen door de molaire massa
vermenigvuldigen met de molaire massa
delen door de dichtheid
vermenigvuldigen met de dichtheid
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Welke van onderstaande reactievergelijkingen is goed kloppend gemaakt?
2 Na (s) + 2 O2 (g) → 2 Na2O (s)
2 Na (s) + 4 O2 (g) → 4 Na2O (s)
4 Na (s) + 2 O2 (g) → 2 Na2O (s)
4 Na (s) + O2 (g) → 2 Na2O (s)
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
De molecuulmassa van water (H2O) is
18,016 u
18,016 g
18,016 g/mol
2,016 u
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Gegeven de reactie: ... Fe + ... O2 --> ... Fe2O3
Welk getal moet er op de rode puntjes (voor Fe) komen, wanneer de reactie kloppend gemaakt wordt?
2
4
6
8
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Welke van onderstaande reactievergelijkingen is goed kloppend gemaakt?
C2H4 (s) + O2 (g) → CO2 (g) + H2O (g)
C2H4 (s) + 3 O2 (g) → 2 CO2 (g) + 2 H2O (g)
2 C2H4 (s) + 2 O2 (g) → 2 CO2 (g) + 2 H2O (g)
C2H4 (s) + 2 O2 (g) → 2 CO2 (g) + 2 H2O (g)
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1,60 mol CO2 is .....g?
70,4 g
27,5 g
0,0363 g
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