Que es el agua un elemento compuesto, mezcla Homo / heterogénea

The clouds are grey and ground is wet. a quantitative b qualitative

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 of sulfur dioxide are produced when 4.38 moles of oxygen completely react with iron (iv) sulfide