133.0873 g/mol
(NH4)3PO3 - molar mass
Answer:
At nine, it can still count as neutral.
Explanation:
The ph scale goes from 0 (acid) to 14 (alkaline/base). The middle would be seven, which is neutral. Nine has more alkalinity than a true neutral, but I believe it is close enough to the middle to not count as a base.
The answer is D because most stained glass is held together with lead. The process of this is called leading.
The answer is low frequency and long wavelength