How many protons are in the nucleus of an atom that has an atomic number of 23 and a mass number of 51? (answer quick )

According to the tide table below what time of day will the highest tide occur?

Chemical energy is a form of a. kinetic energy only. b. both potential and kinetic energy. c. neither potential nor kinetic energy. d. potential energy only. reset

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o