How many grams of P2O5 are formed from 3.4 moles of O2? SHOW the math below

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

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

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