Q: a: using the law of conservation of matter, determine the number of grams of iron sulfide (fes) that will be produced in this reaction.

After cloud droplets form, what must happen to them for precipitation to occur?

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

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.