Hey!! your answer is -----
universal pH indicator is made up by the combination of several types of indicator.
hope you like ______★
Sodium, hydrogen, carbon, and oxygen
I think the half of 1293 its the mass ? maybe idk I just tried
No, because the appearance has nothing to do with system as well as the fact that appearance is only how it looks
(Btw, that toga picture is like... ughhhh!) hope this helps you ♥︎☀︎☁︎♨︎