All of the following are signs that a chemical reaction may have taken place in a piece of glass except
a. the shape of the glass changes
b. energy is used or given off
c. new substance besides glass are formed
d. the glass changes color
@mes305

Question

All of the following are signs that a chemical reaction may have taken place in a piece of glass except
a. the shape of the glass changes 
b. energy is used or given off
c. new substance besides glass are formed
d. the glass changes color
@mes305

anonymous · Answer

A because that is a physical property

anonymous · Answer

thanks man

anonymous · Answer

i'm a girl, but your welcome glad I could help. :)

anonymous · Answer

sorry lol

anonymous · Answer

it's okay there's no way to tell. so no worries.