Ghiata instant (experiment interesant)

Un experiment interesant care l-am descoperit intamplator pe Youtube.

Despre ce e vorba?

Despre cum se poate produce transforma un lichid in gheata in cateva secunde. ATENTIE !!!! daca incercati experimentul nu folositi gheata intr-un pahar cu suc pt ca …. nu e gheata (din apa) care o faceti in frigider.

Ce se intampla defapt?

Reactiile chimice de cele mai multe ori produc caldura dar mai sunt si unele care au nevoie de caldura pentru a avea loc. In acest fel caldura este “absorbita” si mediul din jur ingheata.

Pe scurt:

  • Acetat de sodiu (cristale incolore)
  • o oala
  • apa

Fierbeti apa apoi adaugati acetatul de sodiu. Amestecati pana ce nu mai vedeti nici un cristal de sodiu in apa care fierbe, apoi puneti lichidul obtinut in frigider la rece. Cand este gata … stiti ce sa faceti.

Pentru cine nu poate sa isi procure Acetat de Sodiu aveti in urmatorul clip “reteta”.

Spor la experimente. Si poate un 10 la chimie.

3 Comments

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