Using the ssepr model, the electron-domain geometry of the central atom nh4 is

a polar bond is formed when electrons are shared unevenly between atoms

its first and third is your answer i did the qustion the fourth isnt right

2b2t

explanation:

2b2t

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".