How many how many moles of N2Os are produced when 3.00 mg O2 react completely in the following equation ? 5O2 -->> 2N2Os

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

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Water's surface tension and heat storage capacity are accounted for by its a) orbitals b) weight c) hydrogen bonds d) mass e) size