
Substanțe chimice
Authored by Mirela Mirela
Chemistry
7th Grade
Used 17+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Substanțele compuse
sunt formate dintr-un singur tip de atom
Se găsesc numai în natură
sunt formate din două sau mai multe tipuri de atomi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Carbonatul de calciu se mai numește și
piatră vânătă
piatră de calcar
piatra iadului
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bicarbonatul de amoniu se folosește în
patiserie
construcții
industria de mașini
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acidul fosforic este folosit la
obținerea îngrășămintelor chimice
la gravarea sticlei
la obținerea apei oxigenate
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sulfatul de aluminiu este folosit
în stațiile de tratare a apei în scopul obținerii apei potabile
la distrugerea stalactitelor
la obținerea fontei
6.
OPEN ENDED QUESTION
2 mins • Ungraded
Calculeaza masa molara a oxidului de fier III
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7.
OPEN ENDED QUESTION
5 mins • Ungraded
Ce masă de fier se găsește în 3 moli de oxid de fier III?
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