Differentiate between hilum and micropyle . write in 4 points

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions