
Test prova
Authored by Luca Maddaloni
Chemistry
9th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una porzione di materia con caratteristiche definite e costanti
Sistema
Composto
Fase
Soluzione
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quali coppie di sostanze formano una soluzione fisicamente omogenea?
Acqua ed Etanolo
Acqua e olio
Sabbia e Limatura di ferro
Olio e Aceto
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In quale formula sono presenti sei atomi di ossigeno?
SO3
KHCO3
Fe(SO3)2
Ni(NO2)2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Facendo reagire 40 g di zinco con zolfo, si formano 68 g di prodotto (solfuro di zinco). Quanto zolfo ha reagito?
108 g
68 g
28 g
40 g
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Due moli di ossigeno gassoso pesano
64 g
32 g
16 g
8 g
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