
21.HAFTA
Authored by Şenol NARDAL
Science
8th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tepkime için aşağıdaki ifadelerden hangisi yanlıştır?
Toplam atom sayısı korunmuştur.
Toplam kütle korunmuştur.
M ve N 'nin kimyasal özellikleri K ve L 'ye benzemez.
M ve N maddeleri K ve L maddelerinden atomlar barındırmaz.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tepkime için tepkime öncesi 6 gram hidrojen ve 16 gram oksijen vardır. Tepkime sonucunda 2 gram hidrojen arttığına göre oluşan suyun kütlesi kaç gramdır?
22
20
16
12
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kapalı bir kapta gerçekleşen kimyasal tepkimenin modellemesi yanda verilmiştir. 4 gram hidrojen ile 20 gram oksijen tepkimeye girmiştir ve tepkime sonucunda 4 gram oksijen artmıştır. Tepkime sonucunda kapta kaç gram madde bulunur?
24
20
18
12
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1 katmana sahip kararlı element için aşağıdakilerden hangisi söylenemez?
8A grubunda bulunur.
1. periyotta yer alır
Değerlik elektron sayısı 2'dir.
Alkali metal grubunda yer alır.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Yanda bir kimyasal tepkimede zamanla kütlesi azalan ve artan maddeler gösterilmiştir. Bu tepkimenin doğru tepkime yazılışı aşağıdakilerden hangisinde doğru verilmiştir?
M+N-->K+L
K+L+M-->N
K+L-->M+N
L-->K+M+N
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