Hhhe fffaaast Mixture of water and LEAD SULPHATE is an example of Homogeneous mixture Select one : True O False​

Idon't understand what to put on the left lines i'm confused can anyone ?

How many electrons does silver have to give up in order to achieve a sido noble gas electron configuration

Calculate the expected ph values of the buffer systems from the experiments (a, b,c, d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.