Answer:
Jewelry
Explanation:
Gold and silver are metals which are malleable, ductile, and lustrous. Also they are noble metals. since they are noble metals they are not affected by acid, oxygen, atmosphere and etc. hence gold and silver are used or suitable for making jewlery.
Exocytosis
Chemical
The change was chemical, because it can no longer be returned to the original form. You cannot get back the bubbles or fizz from the air.
ionic
I don't know if this correct
16/18 = % O 2/18 =% H
35.255 x16/18=31.34 O
35.255 X 2/18 = 3.92 H
