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Sarurile




Sarurile sunt substante compuse ,formate din unul sau mai multi atomi ale metalelor si
radicali acizi.

EXEMPLE de saruri:

NaCl-clorura de sodiu(natriu)

ZnCl2-clorura de zinc

FeCl3-clorura de fier(III)

Ag(No3)-azotat de argint

Na2(So4)- sulfat de sodiu(natriu)

Sarurile se clasifica in :

Saruri neutre:

NaCl-clorura de sodiu

Cu(So4)-sulfat de fier(II)

Saruri acide:

NaHCO3-carbonat acid de sodiu

NaHSo4-sulfat acid de sodiu

Sarurile acide:sunt acele saruri care au in structura lor si atomi de H proveniti din acizi.

La denumirea acesot saruri intre numele metalului si al nemetalului se adauga cuvantul
acid.

Sarurile sunt substante solide,cristalizate,albe sau colorate.Unele saruri se dizolva in apa
fiind solubile ,altele sunt insolubile.Unele saruri au gust amar ,altele sarate ,unele au
gust amarui-sarat precum Na2So4.

Sarurile reactioneaza cu metale,cu baze si cu acizi.

Ele sunt utilizate in :fabricarea sapunului ,abtinerea sticlei ,a ingrasamintelor, a hartiei si
a maselor plastice, rafinarea cuprului , medicina si materiale de constructii.

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Saruri

  • 1. Sarurile Sarurile sunt substante compuse ,formate din unul sau mai multi atomi ale metalelor si radicali acizi. EXEMPLE de saruri: NaCl-clorura de sodiu(natriu) ZnCl2-clorura de zinc FeCl3-clorura de fier(III) Ag(No3)-azotat de argint Na2(So4)- sulfat de sodiu(natriu) Sarurile se clasifica in : Saruri neutre: NaCl-clorura de sodiu Cu(So4)-sulfat de fier(II) Saruri acide: NaHCO3-carbonat acid de sodiu NaHSo4-sulfat acid de sodiu Sarurile acide:sunt acele saruri care au in structura lor si atomi de H proveniti din acizi. La denumirea acesot saruri intre numele metalului si al nemetalului se adauga cuvantul acid. Sarurile sunt substante solide,cristalizate,albe sau colorate.Unele saruri se dizolva in apa
  • 2. fiind solubile ,altele sunt insolubile.Unele saruri au gust amar ,altele sarate ,unele au gust amarui-sarat precum Na2So4. Sarurile reactioneaza cu metale,cu baze si cu acizi. Ele sunt utilizate in :fabricarea sapunului ,abtinerea sticlei ,a ingrasamintelor, a hartiei si a maselor plastice, rafinarea cuprului , medicina si materiale de constructii.