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Test 1

Authored by Claudia Pop

Chemistry

11th Grade

Test 1
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5 questions

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1.

OPEN ENDED QUESTION

2 mins • 3 pts

Acizii carboxilici sunt:

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2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Media Image

pH-ul unei probe de vin în contact cu aerul:

crește

scade

nu se modifică

3.

MULTIPLE CHOICE QUESTION

3 mins • 3 pts

Media Image

Denumirea corectă a acidului carboxilic din imagine este:

acid 2-etilbutanoic

acid 3-etilbutanoic

acid 3-metilpentanoic

acid 3-metilbutanoic

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Care acid carboxilic are tărie chimică mai mare?

H-COOH

CH3-COOH

C6H5-COOH

CH3-CH2-COOH

5.

OPEN ENDED QUESTION

15 mins • 8 pts

Se esterifică 12 g acid acetic cu 9,2 g etanol. Știind că procesul de esterificare are constanta de echilibru 4, cantitatea de ester la echilibru este:

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