Juanita drew a venn diagram to compare reproduction in sponges and cnidarians. which label belongs in the area marked x?

Astudent is asked to identify and element that is pale yellow brittle solid and does not conduct electricity. at which location in this periodic table would the element most likely be found?

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

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