Ained ja nende segud kordamine
Quiz
•
Science
•
7th Grade
•
Hard
Rasmus Kaldma
Used 21+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Mis on elemendi He väliskihi aatomite koguarv?
9
6
8
7
Answer explanation
Kuna He kuulub väärisgaaside hulka, siis on tema väliskihil 8 elektroni, mis on maksimaalne elektronide arv sel kihil.
2.
MULTIPLE SELECT QUESTION
45 sec • 10 pts
Lahuste kiirendamise viisideks on...
Temperatuuri tõstmine, segamine, osakeste peenestamine
Iseenesliku segustumise ootamine
Soojuse tõstmine,
segamine,
lahustuva aine tükeldamine
katalüsaatori lisamine
3.
MULTIPLE SELECT QUESTION
45 sec • 10 pts
Kus asetseb Jood perioodilisuse tabelis
Asetseb seitsmendas perioodis ja viiendas A rühmas
Ei tea aga tabelist saab vaadata
Asetseb viiendas perioodis,
seitsmendas B rühmas
Asetseb viiendas perioodis, seitsmendas A rühmas
4.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Kuuest süsinikust, 12.vesinikust ja kuuest hapnikust koosneva elemendi valem on
5.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Ainete eraldamise viisid on
Setitamine ja nõrutamine,
filtrimine,
destilleerimine,
sõelumine
Setitamine,
filtrimine,
sõelumine
Nõrutamine,
filtrimine,
destilleerimine
6.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Liit-
Liht-
Oleneb olekust
7.
MULTIPLE CHOICE QUESTION
30 sec • 10 pts
Palju neutrone on Sn aatomis?
50 neutroni
68 neutroni
118 neutroni
5 neutroni
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