Graad 9 Natuurwetenskappe Junie Vraestel en Memo:
Totaal: 100
Die vraestel dek die volgende werk:
Periodieke Tabel
Name & formules van verbindings
Chemiese Reaksies
Reaksies met Suurstof
Sure & Basisse
Hierdie is 'n oefenvraestel met memorandum bedoel om die leerling se kennis te toet...
GRAAD 9 NATUURWETENSKAPPE JUNIE TOETS
AFDELING A
VRAAG 1
1.1 Verskeie opsies word verskaf as moontlike antwoorde tot die volgende vrae.
Kies die korrekte antwoord en skryf SLEGS die LETTER (A-D) langs die
VRAAGNOMMER (1.1.1-1.1.10) op jou antwoordblad, byvoorbeeld 1.1.11. D.
1.1.1 Watter van die volgende kan jy NIE leer van ‘n chemiese formule nie?
A Elemente in ‘n verbinding B Fase van die element
C Verhouding van atome D Totale aantal atome
1.1.2 Watter van die volgende is NIE ‘n sub-atomiese deeltjie nie?
A Elektrone B Protone
C Neutrone D Nukleone
1.1.3 Wat is die prefix/voorvoegsel vir 6 atome?
A Hepta- B Heksa-
C Penta- D Tri-
1.1.4 ‘n Element het ‘n atoomgetal van 30 en ‘n massagetal van 65.
Hoeveel nukleone sal die atoom hê?
A 30 B 35
C 65 D 95
1.1.5 Die element in groep 15, periode 2 op die periodieke tabel…
A Koolstof B Stikstof
C Silikon D Suurstof
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