Which of these elements is the most electronegative?
A. Sr
B. Na
C. Li
D. Ba

What is the formula for the compound dinitrogen pentoxide? a. n4o5 b. n5o4 c. n4o6 d. n5o2 e. n2o5

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: