NA, O2, CU(OH)2, C2H5OH, C6H5NH2. CH COOH  NA  CH COONA ...

Câu 119:

Na, O

2

, Cu(OH)

2

, C

2

H

5

OH, C

6

H

5

NH

2

.

CH COOH  Na  CH COONa  0,5H

3

3

2

chay

CH COOH  2O   2CO  2H O

3

2

2

2

   

2CH COOH  Cu OH  CH COO Cu  2H O

3

2

3

2

2

CH COOH  C H OH CH COOC H  H O

3

2

5

3

2

5

2

CH COOH  C H NH  C H NH OOCCH

3

6

5

2

6

5

3

3

áp án : D