The equation below shows the decomposition of lead nitrate. How many moles of oxygen are produced when 11.5 g NO2 is formed?
Pb(NO3)2 --> PbO + NO2 +_02

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Is powdered sports drink ionic or covalent ? 10pts !

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1: