
9.kl II KT
Authored by Age Saks
Chemistry
9th Grade
Used 2+ times

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10 questions
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1.
OPEN ENDED QUESTION
2 mins • 2 pts
Kirjuta järgnevate happeliste oksiidide valemid ja neile vastavate hapete valemid.
Oksiidi nimetus: vask(II)oksiid, naatriumoksiid.
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2.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
Mis on happed ja milline on happelahuse pH?
Happed on liitained, mis koosnevad vesinikust ja happeanioonist. Happelises lahuses on vesinikioone rohkem kui hüdroksiidioone.
Happed on lihtained, mis koosnevad vesinikust ja happeanioonist. Happelises lahuses on vesinikioone rohkem kui hüdroksiidioone.
Happed on liitained, mis koosnevad vesinikust ja happeanioonist.
Happelises lahuses on vesinikioone rohkem kui hüdroksiidioone.
3.
OPEN ENDED QUESTION
3 mins • 3 pts
Kirjuta järgnevate happeliste oksiidide valemid ja neile vastavate hapete valemid ja nimetused.
Oksiidi nimetus: dilämmastikpentaoksiid ja tetrafosfordekaoksiid.
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4.
OPEN ENDED QUESTION
2 mins • 4 pts
Kirjuta valemid: raud(II)nitraat, vask(II)karbonaat, kaltsiumkarbonaat, magneesiumfosfaat.
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5.
OPEN ENDED QUESTION
3 mins • 4 pts
Kirjuta nimetused: P4010, NaHCO3, CuS, Na2SiO3.
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6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nimeta anorgaaniliste ainete põhiklassid.
Oksiidid, Happed, Alused, Leelised.
Oksiidid, Happed, Alused, Soolad.
Hürdoksiidid, Oksiidid, Happed, Alused.
Oksiidid, Happed, Alused.
7.
OPEN ENDED QUESTION
45 sec • 2 pts
Kus leiab aset happelise oksiidi reageerimine veega? Palun nimeta 2 näidet.
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