
Keemia põhimõisted_10. klass
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
Eha Paabo
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on allotroobid?
Lihtaine teisendid, mis koosnevad mitmest keemilisest elemendist.
Lihtaine teisendid, mis erinevad struktuuri ja omaduste poolest.
Elemendi teisendid, mis erinevad neutronite arvu poolest aatomituumas.
Ained, mis koosnevad ainult ühest elemendi aatomist.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis vahe on isotoopidel ja allotroopidel?
Allotroobid erinevad massiarvu poolest, isotoobid aga struktuuri poolest.
Isotoobid on elementide teisendid, allotroobid lihtainete teisendid.
Isotoobid ja allotroobid on elemendi erinevad segud.
Isotoobid koosnevad mitmest elemendist, allotroobid aga ühest.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Milline neist reaktsioonidest on eksotermiline?
Reaktsioon, mille käigus eraldub soojust.
Reaktsioon, mille käigus neeldub soojust.
Reaktsioon, mille käigus ei muutu energia.
Reaktsioon, mille käigus toimub energia salvestamine.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mida tähendab amfoteersus?
Aine reageerimine ainult aluseliste ühenditega.
Aine reageerimine nii hapete kui alustega.
Aine reageerimine ainult hapetega.
Aine reageerimine ainult metallide ja hapetega.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on lihtaine?
ühend, mis koosneb ühe elemendi aatomitest.
ühend, mis koosneb kahest elemendist.
ühend, mis koosneb mitme elemendi aatomitest.
ühend, mis sisaldab erinevate ühendite molekule.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis on segu?
sisaldab ühe aine osakesi.
sisaldab kahe või enama aine osakesi.
koosneb ainult vesinikust ja hapnikust.
koosneb ühe elemendi aatomitest.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mis iseloomustab isotoope?
Elemendi teisendid, mis erinevad prootonite arvu poolest.
Elemendi teisendid, mis erinevad neutronite arvu poolest.
Elemendi teisendid, millel on erinev molekulmass.
Elemendi teisendid, mis koosnevad erinevatest ühenditest.
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