If the density of solid chromium is 7.15 g/cm3 , what is the packing efficiency of Cr if it adopts a body‑centered cubic unit cell? The molar mass of Cr is 51.996 g/mol .

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Consider the directing effects of the substituents on salicylamide and predict the possible structures of the iodination products. which do you think will be the major product?