Who am I? Most of us have characteristics of both metal and nonmetals—dull or shiny, brittle, malleable or ductile. Metalloids

Metals

Nonmetals

Meralloids is the answer because they contain all of those characteristics

petroleum? coal maybe?

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.