14. apply concepts write the correct chemical
formula for the compounds formed from each
pair of elements
a. potassium and sulfur
b. calcium and oxygen
c. sodium and oxygen
d. aluminum and nitrogen

potassium sulphide

Calciumoxide

Sodiumoxide

Aluminiumnitrate

Explanation: that is a compound formed from each of the elements

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".

i think it's letter a.