Choose the substance with the lowest viscosity. choose the substance with the lowest viscosity. cl2chch2cl cl3cccl3 cl3cchcl2 cl2chchcl2 clch2ch2cl

The substance with the lowest viscosity is ClCH₂CH₂Cl.

Viscosity of a fluid is its resistance to deformation , or it can be defined as the property that  opposes the relative motion between two surfaces of the fluid that are moving at different velocities.

This can be seen by the structure of ClCH₂CH₂Cl, that it is having least viscosity as it is having least number of chlorine atoms that can resisst the motion so it is least viscous.

to be fair, you have to have a very high iq to understand rick and morty. the humour is extremely subtle, and without a solid grasp of theoretical physics most of the jokes will go over a typical viewer's head. there's also rick's nihilistic outlook, which is deftly woven into his characterisation- his personal philosophy draws heavily from narodnaya volya literature, for instance. the fans understand this stuff; they have the intellectual capacity to truly appreciate the depths of these jokes, to realise that they're not just funny- they say something deep about life. as a consequence people who dislike rick & morty truly are idiots- of course they wouldn't appreciate, for instance, the humour in rick's existential catchphrase "wubba lubba dub dub," which itself is a cryptic reference to turgenev's russian epic fathers and sons. i'm smirking right now just imagining one of those addlepated simpletons scratching their heads in confusion as dan harmon's genius wit unfolds itself on their television screens. what fools.. how i pity them.

and yes, by the way, i do have a rick & morty tattoo. and no, you cannot see it. it's for the ladies' eyes only- and even then they have to demonstrate that they're within 5 iq points of my own (preferably lower) beforehand. nothin personnel kid

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.