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AndreiAndrei007
a fost răspuns

Alegeti afirmatia incorecta, 4 moli de acid propionic reactioneaza cu:
A. 4 atomi de K
B. 2 moli de carbonat de calciu
C. 4 moli de oxid de zinc
D. 2 atomi de Zn
E. 4 moli de NaOH

Daca imi puteti explica si de ce varianta aleasa de voi e incorecta, va dau coroana. Multumesc!!

Răspuns :

Puia68

Răspuns:

1mol...........................1mol

CH3-CH2-COOH+K----> CH3-CH2-COOK + 1/2H2

4mol.........................4mol, nu 4 atomi--->  F

2mol..........................1mol

2CH3-CH2-COOH+CaCO3-----> (CH3CH2COO)Ca +H2CO3

4mol........................2mol

2mol..............................1mol

2CH3-CH2-COOH + ZnO=====> (CH3-CH2-COO)Zn + H2O

4mol.............................2mol,  nu 4mol --->   F

2mol...........................1mol

2CH3-CH2-COOH+Zn----> (CH3-CH2-COO)Zn + H2

4mol...........................2mol ,nu 2 atomi--->  F

1mol................................1mol

CH3-CH2-COOH + NaOH---> CH3-CH2-COONa + 1/2H2

4mol.............................4mol

Explicație:

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