Voorbereiding vir Eksamen NW

Quiz
•
Chemistry
•
9th Grade
•
Hard
Hayla- Claire Joseph
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Die simbool vir Koper is
Co
Cu
K
C
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Watter EEN van die volgende chemiese reaksies stel die reaksie tussen magnesiumhidroksied en soutsuur voor?
Mg(OH)2 + 2 HCl → MgCl2 + 2 H2O
Mg(OH)2 + HCl → MgCl + H2O
Mg(OH)2 + HCl → MgCl2 + H2O
Mg(OH)2 + 2 HCl → MgCl2 + 2 H2 + O2
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Die simbool vir swael is:
Su
Sa
S
Se
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Hoeveel atome is in 4CuSO4?
24
18
8
4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Watter EEN van die volgende chemiese vergelykings stel NIE ʼn gebalanseerde vergelyking voor NIE?
SO2 + H2O → H2SO3
4Na + O2 → 2Na2O
Mg(OH)2 + 2HCl → MgCl2 + 2H2O
2Al + 3O2 → Al2O3
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Waarom kom berillium en magnesium in dieselfde groep voor in die periodieke tabel?
Hulle het dieselfde chemiese eienskappe.
Beide is nie-metale.
Beide is gasse
Hulle atoomgetalle is dieselfde.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Waterstofnitraat (HNO3), bestaan uit die volgende elemente:
Helium, Nitraat en Suurstof
Waterstof, Nitraat
Waterstof, Stikstof en Suurstof
Waterstof, Suurstof en Osoon.
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