If a weak acid is 25 deprotonated at ph 4 what would the pka be

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

An observation that requires measurement is called quantitative observable or qualitative

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption