Dobrý deň chcem vás poprosiť či to mám dobre. Ďakujem za ochotu
Úloha:
Použite slanú vodu
a predmet z kovu, pokus sledujte aspoň 5
dní.
Pozorovanie:KLINEC ,KEĎ SME VLOŽILI DO SKLENENEJ NÁDOBY MAL STRIEBORNÚ FARBU,PO DLHŠOM ČASE ZMENIL FARBU A STRÁCAL LESK.VODA NA ZAČIATKU BOLA ČÍRA NESKÔR SA ZAKALILA-ZAŠPINILA.
Sfarbenie roztoku na začiatku: Číry ,Vzhľad klinca:strieborná
Po 15min: číry,strieborná
Po dlhšom čase:zakalená,hrdzavý
ZÁVER:KLINEC A SLANÁ VODA REAKTANTY REAGUJÚ.VYSLEDOK KLINEC MENÍ SA NA HRDZU.
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