Which of the following is equal to 3.3mm3? a) 3.3 x 10^-6 m^3 b) 3.3 x 10^-9 m^3 c) 3.3 x 10^-6 cm^3 d) 3.3 x 10^-9 cm^3

the only liquid elements at standard temperature and pressure are bromine (br) and mercury (hg). although, elements caesium (cs), rubidium (rb), francium (fr) and gallium (ga) become liquid at or just above room temperature.

explanation:

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.