concurs
Authored by Diana Nichifor
Chemistry
9th Grade
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Oxizii sunt substanțe simple.
Adevărat
Fals
2.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Carbonul și Sulful sunt nemetale.
Adevărat
Fals
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Sulful poate avea valențele I,II,IV
Adevărat
Fals
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Oxizii metalelor se numesc oxizi bazici.
Fals
Adevărat
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
H2S se numește acid sulfuric.
Fals
Adevărat
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Hidrogenul poate fi folosit drept combustibil
Adevărat
Fals
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Oxidul de calciu se mai numește var stins
Adevărat
Fals
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