Test de Evaluare Oxizi
Authored by Daniel Giorgi
Chemistry
1st Grade
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20 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Subliniaţi cu o linie oxizii acizi şi cu două linii oxizii bazici: K2O, P2O5, ZnO, NO2, MgO, CO, Cu2O, SO2, HgO.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Obţineţi oxidul de magneziu prin 2 metode.
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Ce proprietăţi chimice au oxizii? Exemplificaţi.
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Identificaţi substanţele chimice a, b, d, e, f din următoarea schemă de reacţii: a → CaO + b; b + NaOH → Na2CO3 + H2O; CaO + d → CaCl2 + H2O; CaO + H2O → e; b + H2O → f.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Precizaţi care sunt proprietăţile fizice ale oxizilor.
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Denumiţi următorii oxizi: SO3, Cr2O3, N2O5, CaO, CO2, Na2O.
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Clasificaţi oxizii din ex. anterior după criteriile cunoscute.
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